Vulnerability · Published Jun 18, 2026 · Assigned by TuranSec
CVE-2026-55742Cotonti CSRF in admin.rights.php allows privilege escalation
Critical 9.6
In plain English
A critical-severity cross-site request forgery in Cotonti from Cotonti. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)9.6Critical
Exploit odds (30 days)0.2%top 95.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Packagist | cotonti/cotonti | no fix listed | GHSA-7g3p-35vc-mgjr |
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
References
- Vulnerable code: system/admin/admin.rights.php technical-description
- https://github.com/Cotonti/Cotonti product