CVE-2023-50104: Zzcms

Critical severity, CVSS 9.8. EPSS: 1.1% chance of exploitation in the next 30 days.

ZZCMS 2023 has a file upload vulnerability in 3/E_bak5.1/upload/index.php, allowing attackers to exploit this loophole to gain server privileges and execute arbitrary code.

Affected products

• Zzcms Zzcms: version 2023 only

Published 2023-12-29. Last modified 2026-06-17.