CVE-2026-10721
Concrete CMS below 9.5.2 is vulnerable to PHP Object Injection via unserialize() calls in the in Permission, Cache, and Search components
- State
- Published
- Severity
- 8.4 High
- Published
- Jun 10, 2026
- Updated
- Jun 10, 2026
- Reserved
- Jun 2, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.4 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | ConcreteCMS |
Weaknesses
- CWE-502 Deserialization of untrusted data
Affected Products
| Product | Versions |
|---|---|
Concrete CMSConcrete CMS |
|
References
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