Vulnerability · Published Dec 17, 2025 · Assigned by VulnCheck
CVE-2023-53924UliCMS 2023.1-sniffing-vicuna Remote Code Execution via Avatar Upload
High 8.8
In plain English
A high-severity unrestricted file upload in Ulicms from Ulicms. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 61% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.9%top 38.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
UliCMS 2023.1-sniffing-vicuna contains a remote code execution vulnerability that allows authenticated attackers to upload PHP files with .phar extension during profile avatar upload. Attackers can trigger code execution by visiting the uploaded file's location, enabling system command execution through maliciously crafted avatar uploads.
Affected products (as reported)
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
- ExploitDB-51434 exploit
- Archived Product Webpage product
- VulnCheck Advisory: UliCMS 2023.1-sniffing-vicuna Remote Code Execution via Avatar Upload third-party-advisory