CVE-2026-93870 Cotonti through 1.0.0 Cross-Site Request Forgery in the Ratings Plugin AJAX Handler

Medium 5.3 Published Updated

Attackers can forge ratings on behalf of authenticated users in Cotonti CMS by exploiting missing CSRF validation in the ratings plugin.

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-2026-93870?

CVE-2026-93870 is a medium-severity vulnerability in Cotonti, published on 18 Sep 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 through 1.0.0 fails to validate anti-CSRF tokens in the ratings plugin AJAX handler, allowing attackers to forge ratings on behalf of authenticated users. Attackers can craft malicious pages that auto-submit POST requests to modify stored rating data when visited by logged-in users.

Weakness: CWE-352

Which versions are affected by CVE-2026-93870?

How do I fix CVE-2026-93870?

No fix has been published for CVE-2026-93870 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-93870 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-93870 exists.

Sources

Also known as GHSA-7h6q-853g-5r6c.

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