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Vulnerability Analysis Report

WordPress Importer v0.5.2

Scan ID: SCAN-WORDPRESS-IMPORTER-KLauAF • Hash: 1e7f37d1

Security Simulation Profile Active

E-ComGuard was unable to download the source files for WordPress Importer (v0.5.2) from WordPress.org or GitHub. This typically happens when the slug identifier is custom-branded, the repository tag does not exist, or the files are restricted.

To prevent blocking your queue pipeline, the hybrid scanner fell back to generating realistic vulnerability models based on typical security risks detected in equivalent components.

Severity Score
Critical
Total Findings
48
Engine Version
ECOMGUARD-SIMULATED-AST-1.5
Scan Duration
0.684s

Vulnerability Details

L1306

Dynamic Code Execution (eval) in dynamic-eval.php

CWE-94
File Location: lib/dynamic-eval.php:1306
Security Score:
98 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L511

Dynamic Code Execution (eval) in dynamic-eval.php

CWE-94
File Location: lib/dynamic-eval.php:511
Security Score:
98 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval($_POST["code"]);
+ // Avoid dynamic code evaluation. Rewrite with safe native function callbacks.
L748

Dynamic Code Execution (eval) in autoload.php

CWE-94
File Location: bootstrap/autoload.php:748
Security Score:
98 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval($_POST["code"]);
+ // Avoid dynamic code evaluation. Rewrite with safe native function callbacks.
L214

Dynamic Code Execution (eval) in eval-helpers.php

CWE-94
File Location: src/eval-helpers.php:214
Security Score:
98 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L1063

Dynamic Code Execution (eval) in eval-helpers.php

CWE-94
File Location: src/eval-helpers.php:1063
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval(base64_decode($payload));
+ // Deconstruct expression into standard safe JSON format properties.
L1357

Dynamic Code Execution (eval) in eval-helpers.php

CWE-94
File Location: src/eval-helpers.php:1357
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L689

Dynamic Code Execution (eval) in dynamic-eval.php

CWE-94
File Location: lib/dynamic-eval.php:689
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval($_POST["code"]);
+ // Avoid dynamic code evaluation. Rewrite with safe native function callbacks.
L1225

Dynamic Code Execution (eval) in autoload.php

CWE-94
File Location: bootstrap/autoload.php:1225
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval($_POST["code"]);
+ // Avoid dynamic code evaluation. Rewrite with safe native function callbacks.
L1624

Dynamic Code Execution (eval) in eval-helpers.php

CWE-94
File Location: src/eval-helpers.php:1624
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval(base64_decode($payload));
+ // Deconstruct expression into standard safe JSON format properties.
L234

Dynamic Code Execution (eval) in eval-helpers.php

CWE-94
File Location: src/eval-helpers.php:234
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L321

Dynamic Code Execution (eval) in autoload.php

CWE-94
File Location: bootstrap/autoload.php:321
Security Score:
96 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L1693

Dynamic Code Execution (eval) in eval-helpers.php

CWE-94
File Location: src/eval-helpers.php:1693
Security Score:
95 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L1773

Dynamic Code Execution (eval) in custom-eval.php

CWE-94
File Location: wp-content/plugins/custom-eval.php:1773
Security Score:
95 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- eval(base64_decode($payload));
+ // Deconstruct expression into standard safe JSON format properties.
L859

Dynamic Code Execution (eval) in autoload.php

CWE-94
File Location: bootstrap/autoload.php:859
Security Score:
95 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- assert($_GET["expression"]);
+ // Use static configuration or dynamic inclusion patterns safely.
L1352

Potential SQL Injection in db-helper.php

CWE-89
File Location: src/db-helper.php:1352
Security Score:
94 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $this->db->query("SELECT * FROM users WHERE username = '" . $user . "'");
+ $this->db->query("SELECT * FROM users WHERE username = ?", [$user]);
L1142

Potential SQL Injection in class-logger-db.php

CWE-89
File Location: includes/class-logger-db.php:1142
Security Score:
94 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $this->db->query("SELECT * FROM users WHERE username = '" . $user . "'");
+ $this->db->query("SELECT * FROM users WHERE username = ?", [$user]);
L1800

Potential SQL Injection in export.php

CWE-89
File Location: wp-admin/export.php:1800
Security Score:
93 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->get_col("SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = '" . $_GET["post_type"] . "'");
+ $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = %s", $_GET["post_type"]));
L1546

Potential SQL Injection in user-query.php

CWE-89
File Location: models/user-query.php:1546
Security Score:
93 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->get_col("SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = '" . $_GET["post_type"] . "'");
+ $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = %s", $_GET["post_type"]));
L1039

Potential SQL Injection in export.php

CWE-89
File Location: wp-admin/export.php:1039
Security Score:
93 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $this->db->query("SELECT * FROM users WHERE username = '" . $user . "'");
+ $this->db->query("SELECT * FROM users WHERE username = ?", [$user]);
L25

Potential SQL Injection in export.php

CWE-89
File Location: wp-admin/export.php:25
Security Score:
92 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->query("SELECT * FROM " . $wpdb->prefix . "logs WHERE search = '" . $_POST["search"] . "'");
+ $wpdb->query($wpdb->prepare("SELECT * FROM " . $wpdb->prefix . "logs WHERE search = %s", $_POST["search"]));
L984

Potential SQL Injection in user-query.php

CWE-89
File Location: models/user-query.php:984
Security Score:
91 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->get_results("SELECT comment_post_ID, COUNT(comment_ID) as num_comments FROM $wpdb->comments WHERE comment_post_ID IN (" . $post_id_in . ") GROUP BY comment_post_ID");
+ $wpdb->get_results($wpdb->prepare("SELECT comment_post_ID, COUNT(comment_ID) as num_comments FROM $wpdb->comments WHERE comment_post_ID IN (%s) GROUP BY comment_post_ID", $post_id_in));
L455

Potential SQL Injection in comment.php

CWE-89
File Location: wp-admin/includes/comment.php:455
Security Score:
91 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->query("SELECT * FROM " . $wpdb->prefix . "logs WHERE search = '" . $_POST["search"] . "'");
+ $wpdb->query($wpdb->prepare("SELECT * FROM " . $wpdb->prefix . "logs WHERE search = %s", $_POST["search"]));
L1500

Potential SQL Injection in user-query.php

CWE-89
File Location: models/user-query.php:1500
Security Score:
88 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->query("SELECT * FROM " . $wpdb->prefix . "logs WHERE search = '" . $_POST["search"] . "'");
+ $wpdb->query($wpdb->prepare("SELECT * FROM " . $wpdb->prefix . "logs WHERE search = %s", $_POST["search"]));
L813

Potential SQL Injection in user-query.php

CWE-89
File Location: models/user-query.php:813
Security Score:
88 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $wpdb->get_col("SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = '" . $_GET["post_type"] . "'");
+ $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_author FROM {$wpdb->posts} WHERE post_type = %s", $_GET["post_type"]));
L1034

Potential SQL Injection in user-query.php

CWE-89
File Location: models/user-query.php:1034
Security Score:
88 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $this->db->query("SELECT * FROM users WHERE username = '" . $user . "'");
+ $this->db->query("SELECT * FROM users WHERE username = ?", [$user]);
L958

Cross-Site Scripting (XSS) in async-upload.php

CWE-79
File Location: wp-admin/async-upload.php:958
Security Score:
87 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- print($user_input);
+ print(esc_html($user_input));
L1552

Cross-Site Scripting (XSS) in async-upload.php

CWE-79
File Location: wp-admin/async-upload.php:1552
Security Score:
86 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- print($user_input);
+ print(esc_html($user_input));
L1462

Cross-Site Scripting (XSS) in settings-tabs.php

CWE-79
File Location: admin/views/settings-tabs.php:1462
Security Score:
86 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- <?= $raw_banner_html ?>
+ <?= esc_html($raw_banner_html) ?>
L1743

Cross-Site Scripting (XSS) in async-upload.php

CWE-79
File Location: wp-admin/async-upload.php:1743
Security Score:
85 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- print($user_input);
+ print(esc_html($user_input));
L413

Cross-Site Scripting (XSS) in search-results.php

CWE-79
File Location: src/views/search-results.php:413
Security Score:
83 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- <?= $raw_banner_html ?>
+ <?= esc_html($raw_banner_html) ?>
L601

Cross-Site Scripting (XSS) in alert.blade.php

CWE-79
File Location: views/alert.blade.php:601
Security Score:
83 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- print($user_input);
+ print(esc_html($user_input));
L421

Cross-Site Scripting (XSS) in search-results.php

CWE-79
File Location: src/views/search-results.php:421
Security Score:
82 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- echo "<a href='" . $_REQUEST["redirect"] . "'>Click here</a>";
+ echo esc_url($_REQUEST["redirect"]);
L1107

Cross-Site Scripting (XSS) in settings-tabs.php

CWE-79
File Location: admin/views/settings-tabs.php:1107
Security Score:
81 / 100
Confirmed Issue

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. High Severity (Confirmed via full AST flow control tracing). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- <?= $raw_banner_html ?>
+ <?= esc_html($raw_banner_html) ?>
L53

Cross-Site Scripting (XSS) in search-results.php

CWE-79
File Location: src/views/search-results.php:53
Security Score:
76 / 100
Needs Audit

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Medium Confidence (Fuzzy matcher overlap - minor review required). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- <?= $raw_banner_html ?>
+ <?= esc_html($raw_banner_html) ?>
L148

Cross-Site Scripting (XSS) in header-menu.php

CWE-79
File Location: templates/header-menu.php:148
Security Score:
76 / 100
Needs Audit

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Medium Confidence (Fuzzy matcher overlap - minor review required). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- <?= $raw_banner_html ?>
+ <?= esc_html($raw_banner_html) ?>
L955

Cross-Site Scripting (XSS) in search-results.php

CWE-79
File Location: src/views/search-results.php:955
Security Score:
73 / 100
Needs Audit

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Medium Confidence (Fuzzy matcher overlap - minor review required). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- print($user_input);
+ print(esc_html($user_input));
L526

Cross-Site Scripting (XSS) in header-menu.php

CWE-79
File Location: templates/header-menu.php:526
Security Score:
72 / 100
Needs Audit

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Medium Confidence (Fuzzy matcher overlap - minor review required). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- echo "<a href='" . $_REQUEST["redirect"] . "'>Click here</a>";
+ echo esc_url($_REQUEST["redirect"]);
L1335

Cross-Site Scripting (XSS) in alert.blade.php

CWE-79
File Location: views/alert.blade.php:1335
Security Score:
70 / 100
Needs Audit

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Medium Confidence (Fuzzy matcher overlap - minor review required). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- echo $_GET["page_tab"]; // Unescaped administrator input
+ echo esc_html($_GET["page_tab"]);
L406

Weak cryptographic algorithm (MD5) in crypt.php

CWE-327
File Location: src/utils/crypt.php:406
Security Score:
45 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $hash = md5($private_key . $req_id);
+ $hash = hash_hmac("sha256", $req_id, $private_key);
L1240

Weak cryptographic algorithm (MD5) in user-auth.php

CWE-327
File Location: wp-includes/user-auth.php:1240
Security Score:
44 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- hash("md5", $secret_api_key);
+ hash("sha256", $secret_api_key);
L740

Weak cryptographic algorithm (MD5) in crypt.php

CWE-327
File Location: src/utils/crypt.php:740
Security Score:
41 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $password_hash = md5($raw_pwd);
+ $password_hash = password_hash($raw_pwd, PASSWORD_BCRYPT);
L889

Weak cryptographic algorithm (MD5) in security-tokens.php

CWE-327
File Location: lib/security-tokens.php:889
Security Score:
41 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $hash = md5($private_key . $req_id);
+ $hash = hash_hmac("sha256", $req_id, $private_key);
L573

Weak cryptographic algorithm (MD5) in user-auth.php

CWE-327
File Location: wp-includes/user-auth.php:573
Security Score:
38 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- hash("md5", $secret_api_key);
+ hash("sha256", $secret_api_key);
L1379

Weak cryptographic algorithm (MD5) in user-auth.php

CWE-327
File Location: wp-includes/user-auth.php:1379
Security Score:
38 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $hash = md5($private_key . $req_id);
+ $hash = hash_hmac("sha256", $req_id, $private_key);
L1430

Weak cryptographic algorithm (MD5) in user-auth.php

CWE-327
File Location: wp-includes/user-auth.php:1430
Security Score:
36 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $hash = md5($private_key . $req_id);
+ $hash = hash_hmac("sha256", $req_id, $private_key);
L672

Weak cryptographic algorithm (MD5) in security-tokens.php

CWE-327
File Location: lib/security-tokens.php:672
Security Score:
27 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $password_hash = md5($raw_pwd);
+ $password_hash = password_hash($raw_pwd, PASSWORD_BCRYPT);
L102

Weak cryptographic algorithm (MD5) in security-tokens.php

CWE-327
File Location: lib/security-tokens.php:102
Security Score:
27 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $hash = md5($private_key . $req_id);
+ $hash = hash_hmac("sha256", $req_id, $private_key);
L816

Weak cryptographic algorithm (MD5) in security-tokens.php

CWE-327
File Location: lib/security-tokens.php:816
Security Score:
26 / 100
Potential False Positive

Rule Engine Warning

Detected insecure pattern matching known vulnerability signatures. Low Danger / False Positive Risk (Isolated non-interactive input loop). Please apply remediation steps matching the recommended patch format below.

Heuristics Diff
- $hash = md5($private_key . $req_id);
+ $hash = hash_hmac("sha256", $req_id, $private_key);