CVE-2023-53923

CRITICAL 9.8CVE-2023-53923 · Published 17/12/2025 · updated 17/06/2026

In short

CVE-2023-53923 is a CRITICAL (CVSS 9.8) vulnerability affecting ulicms (ulicms).
Chance of exploitation in the next 30 days (EPSS): 0.55%, higher than 46.2% of all vulnerabilities.
No patched version is listed yet: follow the vendor's advisory in References.

Package	Affected versions	Patched versions
ulicms ulicms	`= 2023.1`	No fix yet

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.

References

web.archive.org/web/20230314183734/https://en.ulicms.de · Product
exploit-db.com/exploits/51433 · Exploit
vulncheck.com/advisories/ulicms-privilege-escalation-via-unauthenticated-admin-account-creation · Third Party Advisory

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Package

Affected versions

Patched versions

ulicms

= 2023.1

No fix yet

Description

More vulnerabilities in ulicms

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