CVE-2023-53923

CRITICAL 9.8

UliCMS 2023.1 Privilege Escalation via Unauthenticated Admin Account Creation

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-862
Vendor	ulicms
Product	ulicms
Published	Dec 17, 2025
Last Updated	Apr 7, 2026

Stay Ahead of the Next One

Get instant alerts for ulicms ulicms

Be the first to know when new critical vulnerabilities affecting ulicms ulicms are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Ulicms / Ulicms

2023.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

exploit-db.com: https://www.exploit-db.com/exploits/51433 web.archive.org: https://web.archive.org/web/20230314183734/https://en.ulicms.de/ vulncheck.com: https://www.vulncheck.com/advisories/ulicms-privilege-escalation-via-unauthenticated-admin-account-creation

Credits

Mirabbas Ağalarov