What’s Vulnerable › Vulnerabilities

CVE-2023-53923: UliCMS 2023.1 Privilege Escalation via Unauthenticated Admin Account Creation

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-12-17 · updated 2026-06-17
• Weakness: CWE-862

Description

UliCMS 2023.1 contains a privilege escalation vulnerability that allows unauthenticated attackers to create administrative accounts through the UserController endpoint. Attackers can send a crafted POST request to /dist/admin/index.php with specific parameters to generate a new admin user 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/51433
• https://www.vulncheck.com/advisories/ulicms-privilege-escalation-via-unauthenticated-admin-account-creation
• https://www.exploit-db.com/exploits/51433

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