CVE-2026-55742CWE-352csrf

CVE-2026-55742

Critical · published June 18, 2026

CVSS v3.1
9.6
EPSS
0%
Percentile
10.3
In the wild
Unconfirmed
What it is

Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to Cross-Site Request Forgery in the administration rights handler. In system/admin/admin.rights.php, the rights update action ('a=update') modifies group access rights (including via cot_auth_add_group) without calling cot_check_xg to validate the anti-CSRF token.

The record
Technical detail
CVSS v3.1
9.6 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00208 · 10.3th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-06-18T12:16Z
References (2)
https://github.com/Cotonti/Cotonti · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2chttps://github.com/Cotonti/Cotonti/blob/f43f1fc38ba4e02027786dad9dac1435c7c52b30/system/admin/admin.rights.php#L53 · 309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c
EPSS history
Timeline
  • 18 JUN 06:05Z
    Cotonti CSRF in admin.rights.php allows privilege escalation
    cvelistv5