CVE-2024-44821: Zzcms

Medium severity, CVSS 5.3. EPSS: 0.4% chance of exploitation in the next 30 days.

ZZCMS 2023 contains a vulnerability in the captcha reuse logic located in /inc/function.php. The checkyzm function does not properly refresh the captcha value after a failed validation attempt. As a result, an attacker can exploit this flaw by repeatedly submitting the same incorrect captcha response, allowing them to capture the correct captcha value through error messages.

Affected products

• Zzcms Zzcms: up to and including 2023

Published 2024-09-04. Last modified 2026-06-17.