CVE-2026-55742 CRITICAL

CVE-2026-55742: Cotonti CSRF in admin.rights.php allows privilege escalation

Vendor Cotonti

Product Cotonti

Weakness CWE-352 · CSRF

Published June 18, 2026

Last update August 10, 2026

View on NVD All CVEs

CVSS base score

9.6/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction Required

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

June 18, 2026 CVE published

August 10, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-55742 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/352.html AskarLabs — CWE-352 write-up Cross-Site Request Forgery

Related vulnerabilities

04Related CVE

CVE-2026-66686 WordPress Plugins Garbage Collector (Database Cleanup) plugin <= 0.14 - Cross Site Request Forgery (CSRF) vulnerability CVE-2026-60025 Joomla Extension - joomdonation.com - User enumeration in Events Booking < 5.8.0 CVE-2026-57761 WordPress SEOWP theme <= 3.12.2 - CSRF to Stored XSS vulnerability CVE-2026-66602 WordPress HashBar – WordPress Notification Bar plugin <= 2.0.0 - Cross Site Request Forgery (CSRF) vulnerability CVE-2026-63684 Joomla Extension - regularlabs.com - Inconsistent CSRF token checks / privilege checks in various admin/import/export actions of multiple Regular Labs extension