CVE-2023-53892CWE-434

Blackcat CMS 1.4 Remote Code Execution via Jquery Plugin Manager

High · published December 15, 2025

CVSS v4.0
8.6
EPSS
1%
Percentile
59.6
In the wild
Unconfirmed
What it is

🚨 Just a single crafty upload could lead to total chaos! Blackcat CMS 1.4 allows authenticated admins to upload PHP files through its jQuery plugin manager, opening the door to remote code execution. ⚡ Think of the jQuery plugin manager as a restaurant's kitchen where an unwatched chef could bring in their own ingredients without anyone checking them. If the chef isn't careful, they could slip in something harmful disguised as a normal ingredient, potentially poisoning the entire dish! An attacker could craft a malicious PHP ZIP file, upload it, and execute arbitrary commands on the server. This means they could manipulate data, take control of the server, or even execute potentially devastating scripts—all from a plugin that should have been harmless!

Put simply

Think of the jQuery plugin manager as a restaurant's kitchen where an unwatched chef could bring in their own ingredients without anyone checking them. If the chef isn't careful, they could slip in something harmful disguised as a normal ingredient, potentially poisoning the entire dish! This vulnerability allows authenticated administrators of Blackcat CMS 1.4 to upload a malicious PHP script via the jQuery plugin manager. Using a 'code' parameter, attackers can execute arbitrary system commands through the uploaded file.

What to do

An attacker could craft a malicious PHP ZIP file, upload it, and execute arbitrary commands on the server. This means they could manipulate data, take control of the server, or even execute potentially devastating scripts—all from a plugin that should have been harmless! To secure your system, ensure you upgrade Blackcat CMS to the latest patched version immediately. Additionally, restrict access to the jQuery plugin manager and implement file validation to prevent execution of untrusted uploads. 🛡️ You've got this! By following these steps, you can protect your site from this sneaky exploit! ✨

The record
Technical detail
CVSS v4.0
8.6 · HIGH
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
EPSS
0.00911 · 59.6th percentile
Weakness
CWE-434 · Unrestricted Upload of File with Dangerous Type
Published
2025-12-15T20:28Z
EPSS history
Timeline
  • 15 DEC 20:28Z
    Blackcat CMS 1.4 Remote Code Execution via Jquery Plugin Manager
    cvelistv5