CVE-2020-23426: Zzcms

Critical severity, CVSS 9.8. EPSS: 3.7% chance of exploitation in the next 30 days.

zzcms 201910 contains an access control vulnerability through escalation of privileges in /user/adv.php, which allows an attacker to modify data for further attacks such as CSRF.

Affected products

• Zzcms Zzcms: version 201910 only

Published 2021-04-08. Last modified 2026-06-17.