CyberRota Analysis
AI-GeneratedContao CMS versions 4.0.0 to 5.3.50 and 5.7.12 are vulnerable to a CSRF issue, allowing authenticated backend users to execute potentially destructive actions without a valid CSRF token when accessing attacker-controlled URLs. While the impact is limited to actions available to the user, it poses a risk of unauthorized state changes within the application. Organizations using affected versions should prioritize updating to the patched releases (5.3.50 and 5.7.12) to mitigate this vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
Note: these links are listed for security research and verification purposes only.
Original NVD Description
Contao is an Open Source CMS. From version 4.0.0 until 5.3.50 and 5.7.12, RequestTokenListener validates REQUEST_TOKEN only for POST requests, while the declarative GET guard runs only when an act parameter is present. Backend actions dispatched through the key parameter can therefore execute without a CSRF token when an authenticated backend user loads an attacker-controlled URL. Reachable actions remain limited to modules available to that user, and the advisory demonstrates destructive or state-changing actions rather than privilege escalation. This issue is fixed in versions 5.3.50 and 5.7.12.