CVE-2026-3666

Description

The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion in all versions up to, and including, 2.4.16. This is due to a missing file name/path validation against path traversal sequences. This makes it possible for authenticated attackers, with subscriber level access and above, to delete arbitrary files on the server by embedding a crafted path traversal string in a forum post body and then deleting the post.

References

• https://plugins.trac.wordpress.org/changeset?old_path=wpforo/tags/2.4.16/classes/Posts.php&new_path=wpforo/tags/2.4.17/classes/Posts.php&old=3471614&new=3483044
• https://www.wordfence.com/threat-intel/vulnerabilities/id/f215e320-8563-4d25-9963-ed3664b4901d?source=cve