CVE-2026-55741 Cotonti CSRF in admin.config.php allows unauthorized configuration changes
Attackers can force authenticated admins to change configuration settings via CSRF due to missing token validation in the admin config handler.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-55741?
CVE-2026-55741 is a high-severity vulnerability in Cotonti, published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Cotonti 1.0.0 (master branch, commit f43f1fc3) is vulnerable to Cross-Site Request Forgery in the administration configuration handler. In system/admin/admin.config.php, the configuration update action ('a=update') processes POST data via cot_config_update_options without calling cot_check_xg to validate the anti-CSRF token (the 'x' parameter), unlike other admin handlers (e.g. admin.structure.php, admin.cache.php).
Weakness: CWE-352
Which versions are affected by CVE-2026-55741?
How do I fix CVE-2026-55741?
No fix has been published for CVE-2026-55741 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-55741 being exploited?
There is no known exploitation of CVE-2026-55741 in the wild and no public exploit code.
Sources
Also known as GHSA-7w6j-5mfv-gf3p.