MaxSite CMS through 109.6 passes the ci_session cookie to unserialize() without class restrictions, allowing unauthenticated attackers to inject PHP objects. Attackers can forge valid session cookies using the hardcoded encryption key to trigger magic methods and corrupt application state or achieve code execution if gadget classes exist.
Metrics
Affected Vendors & Products
References
History
Wed, 09 Sep 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 09 Sep 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | MaxSite CMS through 109.6 passes the ci_session cookie to unserialize() without class restrictions, allowing unauthenticated attackers to inject PHP objects. Attackers can forge valid session cookies using the hardcoded encryption key to trigger magic methods and corrupt application state or achieve code execution if gadget classes exist. | |
| Title | MaxSite CMS through 109.6 PHP Object Injection via ci_session | |
| First Time appeared |
Max-3000
Max-3000 maxsite Cms |
|
| Weaknesses | CWE-502 | |
| CPEs | cpe:2.3:a:max-3000:maxsite_cms:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Max-3000
Max-3000 maxsite Cms |
|
| References |
|
|
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-09-09T16:45:00.798Z
Updated: 2026-09-09T17:24:57.540Z
Reserved: 2026-09-09T16:12:38.084Z
Link: CVE-2026-87930
Updated: 2026-09-09T17:24:52.802Z
Status : Deferred
Published: 2026-09-09T17:17:53.990
Modified: 2026-09-09T20:14:00.420
Link: CVE-2026-87930
No data.