CVE-2026-71294

HIGH

Cotonti CMS Comments Plugin PHP Object Injection via Unrestricted unserialize() in Create/Edit Actions

Title source: cna
STIX 2.1

Description

Cotonti CMS's Comments plugin deserializes user-supplied data without restricting the classes that may be instantiated. In plugins/comments/controllers/actions/CreateAction.php, a POST parameter obtained via (trim-only sanitization) is passed to with no restriction, reachable by any member with write access to comments (the default setting in plugins/comments/comments.setup.php).

References (2)

Core 2

Scores

CVSS v3 7.6
EPSS 0.0022
EPSS Percentile 13.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-502
Status published
Products (1)
Cotonti/Cotonti
Published Aug 05, 2026
Tracked Since Aug 05, 2026