Blackcat CMS 1.4 Remote Code Execution via Jquery Plugin Manager

Advisories

severity: high
date: December 15, 2025
Affecting: Blackcat CMS 1.4
CVE: CVE-2023-53892
CWE: CWE-434 Unrestricted Upload of File with Dangerous Type
CVSS: 8.6
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-51605
BlackCat CMS Product Webpage
Credit: Mirabbas Ağalarov
Description: Blackcat CMS 1.4 contains a remote code execution vulnerability that allows authenticated administrators to upload malicious PHP files through the jquery plugin manager. Attackers can upload a zip file with a PHP shell script and execute arbitrary system commands by accessing the uploaded plugin's PHP file with a 'code' parameter.