Vulnerability · Published Sep 28, 2026 · Assigned by VulnCheck
CVE-2026-101093Cotonti through 1.0.0 Cross-Site Request Forgery via User Group Deletion
Medium 5.4
In plain English
A medium-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 0.1% (higher than 2% of all known vulnerabilities).
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.1%top 97.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Cotonti through 1.0.0 contains a cross-site request forgery vulnerability in admin.users.php that allows attackers to delete user groups without token verification. Attackers can craft malicious links or pages that trick authenticated administrators into deleting custom groups and their associated permissions by riding the administrator's session.
Affected products (as reported)
Weakness: CWE-352 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
References
- https://github.com/Cotonti/Cotonti/issues/1907#issuecomment-5845691148 issue-tracking
- https://github.com/Cotonti/Cotonti/pull/1908 issue-tracking, patch
- https://github.com/Cotonti/Cotonti/blob/1.0.0/system/admin/admin.users.php#L136-L140 technical-description
- https://github.com/Cotonti/Cotonti product
- VulnCheck Advisory: Cotonti through 1.0.0 Cross-Site Request Forgery via User Group Deletion third-party-advisory