CVE-2025-34085
Severity CVSS v4.0:
CRITICAL
Type:
CWE-306
Missing Authentication for Critical Function
Publication date:
09/07/2025
Last modified:
10/07/2025
Description
An unrestricted file upload vulnerability in the WordPress Simple File List plugin prior to version 4.2.3 allows unauthenticated remote attackers to achieve remote code execution. The plugin's upload endpoint (ee-upload-engine.php) restricts file uploads based on extension, but lacks proper validation after file renaming. An attacker can first upload a PHP payload disguised as a .png file, then use the plugin’s ee-file-engine.php rename functionality to change the extension to .php. This bypasses upload restrictions and results in the uploaded payload being executable on the server.
Impact
Base Score 4.0
10.00
Severity 4.0
CRITICAL
References to Advisories, Solutions, and Tools
- https://packetstorm.news/files/id/160221
- https://plugins.trac.wordpress.org/changeset/2286920/simple-file-list
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/wp_simple_file_list_rce.rb
- https://simplefilelist.com/
- https://vulncheck.com/advisories/wordpress-simple-file-list-plugin-rce
- https://web.archive.org/web/20220426044003/https://wpscan.com/vulnerability/10192/
- https://wordpress.org/plugins/simple-file-list/
- https://www.cybersecurity-help.cz/vdb/SB2020042711
- https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/simple-file-list/simple-file-list-423-remote-code-execution