Vulnerability Description
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components. An unauthenticated attacker may trigger arbitrary PHP object instantiation if a malicious serialized payload has been placed in the database. Thanks XananasX7 for reporting.
Related Weaknesses (CWE)
References
FAQ
What is CVE-2026-10721?
CVE-2026-10721 is a documented vulnerability. Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components. An unauthenticated attacker may trigger arbitrary PHP object...
How severe is CVE-2026-10721?
CVSS scoring is not yet available for CVE-2026-10721. Check NVD for updates.
Is there a patch for CVE-2026-10721?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.