CVE-2023-53923 | UliCMS 2023.1 contains a privilege escalation vulnerability … | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2023-53923
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2025-12-16 19:22 UTC
Published: 2025-12-17 22:44 UTC
Last updated: 2026-04-07 14:07 UTC
Primary CWE: CWE-862
Missing Authorization
Vendor / Product: Ulicms / Ulicms
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
Ulicms	Ulicms	—	2023.1

Weakness (CWE)

CWE	Source	Description
CWE-862	cna	Missing Authorization

CVSS scores (2)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References (3)

ExploitDB-51433 https://www.exploit-db.com/exploits/51433
Archived Product Webpage https://web.archive.org/web/20230314183734/https://en.ulicms.de/
VulnCheck Advisory: UliCMS 2023.1 Privilege Escalation via Unauthenticated Admin Account Creation https://www.vulncheck.com/advisories/ulicms-privilege-escalation-via-unauthenticated-admin-account-creation