UliCMS 2023.1-sniffing-vicuna Remote Code Execution via Avatar Upload

Advisories

severity: high
date: December 17, 2025
Affecting: Ulicms 2023.1
CVE: CVE-2023-53924
CWE: CWE-434 Unrestricted Upload of File with Dangerous Type
CVSS: 8.7
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-51434
Archived Product Webpage
Credit: Mirabbas Ağalarov
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.