Vulnerability Description
The extension fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize(). A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-77138?
CVE-2026-77138 is a documented vulnerability. The extension fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize(). A remote, unauthenticated attacker can supply a crafted serialized payloa...
How severe is CVE-2026-77138?
CVSS scoring is not yet available for CVE-2026-77138. Check NVD for updates.
Is there a patch for CVE-2026-77138?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.