PT-2026-75968 · Packagist · Concrete5/Concrete5
Published
2026-06-10
·
Updated
2026-06-10
CVSS v4.0
8.4
High
| Vector | AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
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. Concrete CMS thanks XananasX7 for reporting this issue.
Fix
Deserialization of Untrusted Data
Found an issue in the description? Have something to add? Feel free to write us 👾
Weakness Enumeration
Related Identifiers
Affected Products
Concrete5/Concrete5