CVE-2023-53914

UliCMS 2023.1 Authentication Bypass via Mass Assignment Vulnerability

UliCMS 2023.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to create admin users through mass assignment in the UserController. Attackers can send a crafted POST request to the admin index.php endpoint with specific parameters to generate an administrative account with full system access.

Affected

ulicms · Ulicms

CVSS v4.0 VULNCHECK

9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 VULNCHECK

9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

0.69% chance of exploitation in the next 30 days, 52nd percentile

Published

2025-12-17

Updated

2026-04-07

Proof-of-concept exploits (1)

• https://www.exploit-db.com/exploits/51486

Security advisories

• https://www.vulncheck.com/advisories/ulicms-authentication-bypass-via-mass-assignment-vul…
• https://web.archive.org/web/20230314183734/https://en.ulicms.de

References

• CVE Record
• NVD entry