What the vulnerability does
01Description
The Frontend File Manager Plugin plugin for WordPress is vulnerable to Authenticated Arbitrary File Deletion in versions up to and including 23.6. This is due to a case-sensitive bypass of the wpfm_dir_path parameter sanitization in the wpfm_file_meta_update AJAX handler, where supplying WPFM_DIR_PATH in uppercase evades the unset check and is normalized to wpfm_dir_path by sanitize_key() during update_post_meta(), allowing an attacker to overwrite the stored file path with an arbitrary filesystem path that is then passed directly to unlink() in delete_file_locally() without any directory containment validation. This makes it possible for authenticated attackers with Subscriber-level access to delete arbitrary files on the server, including sensitive files such as wp-config.php, potentially leading to full site takeover.
Explanation of Vulnerability in Simple Terms
02Summary
The Frontend File Manager Plugin for WordPress contains a vulnerability that allows authenticated users with low privileges to modify or delete files on the site without proper authorization checks. An attacker with a basic user account can manipulate file operations through the plugin's interface. This affects all versions up to 23.6. Site administrators should update immediately to a patched version.
What an attacker can do
03Attacker Capabilities
Modify or delete files on the site using a low-privilege user account.
Potential impact on your site
04Site Impact
Unauthorized file changes or deletions could corrupt site content, break functionality, or enable further attacks.
Conditions required to exploit
05Prerequisites
Attacker must have a valid WordPress user account with low privileges; no user interaction required.
Key dates
06Disclosure timeline
June 27, 2026
CVE published
June 29, 2026
Record updated
