What’s Vulnerable › Vulnerabilities

CVE-2023-53914: UliCMS 2023.1 Authentication Bypass via Mass Assignment Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-17 · updated 2026-06-17
• Weakness: CWE-639

Description

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 products

• Ulicms: 2023.1

References

• https://web.archive.org/web/20230314183734/https://en.ulicms.de/
• https://www.exploit-db.com/exploits/51486
• https://www.vulncheck.com/advisories/ulicms-authentication-bypass-via-mass-assignment-vulnerability
• https://www.exploit-db.com/exploits/51486

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