What’s Vulnerable › Vulnerabilities

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

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-22
• Weakness: CWE-352

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.

Affected products

• Cotonti: through 1.0.0

References

• https://github.com/Cotonti/Cotonti
• https://github.com/Cotonti/Cotonti/blob/1.0.0/plugins/ratings/ratings.ajax.php
• https://github.com/Cotonti/Cotonti/issues/1892
• https://github.com/Cotonti/Cotonti/pull/1900
• https://www.vulncheck.com/advisories/cotonti-through-1.0.0-cross-site-request-forgery-in-the-ratings-plugin-ajax-handler
• https://github.com/Cotonti/Cotonti/issues/1892

Get alerted when CVE-2026-93870 or the next vulnerability affects your stack