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Critical · 9.6 CVE-2026-55742 EUVD-2026-37854GHSA-7g3p-35vc-mgjr

Cotonti CSRF in admin.rights.php allows privilege escalation

Published Jun 18, 2026 · Updated Aug 10, 2026 · Assigned by TuranSec

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 products

VendorProductAffectedFixed
Cotonti Cotonti 1.0.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
Packagist cotonti/cotonti <= 1.0.0 — GHSA-7g3p-35vc-mgjr

References