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CVE-2024-8743 PoC

Background

Proof-of-Concept script for WordPress plugin Bit File Manager version <= 6.5.7 Authenticated (Subscriber+) Limited JavaScript File Upload (CVE-2024-8743) vulnerability

Information

Description:

The Bit File Manager – 100% Free & Open Source File Manager and Code Editor for WordPress plugin for WordPress is vulnerable to Limited JavaScript File Upload in all versions up to, and including, 6.5.7. This is due to a lack of proper checks on allowed file types. This makes it possible for authenticated attackers, with Subscriber-level access and above, and granted permissions by an administrator, to upload .css and .js files, which could lead to Stored Cross-Site Scripting. (From https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/file-manager/bit-file-manager-100-free-open-source-file-manager-and-code-editor-for-wordpress-657-authenticated-subscriber-limited-javascript-file-upload)

Technical Details

Writeup: https://siunam321.github.io/ctf/Bug-Bounty/Wordfence/how-i-found-my-first-vulnerabilities-in-6-different-wordpress-plugins-part-2/#allowing-javascript-andor-css-files-upload---bit-file-manager-limited-file-upload

Installation

git clone https://github.com/siunam321/CVE-2024-8743-PoC.git

Usage/Exploitation

  • Prerequisite: Subscriber or above user access and shortcode file-manager must already been setup by the adminsitrator

Update the Python script poc.py's wordpressUsername, wordpressPassword, targetBaseUrl, fileManagerPostPath, attackerIpAddress, and/or attackerPort to your desired value. Then, run python3 poc.py to run the PoC script.

PoC video demo:

poc_demo.mp4