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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.

PUBLISHED Reserved 2026-03-06 | Published 2026-04-04 | Updated 2026-04-08 | Assigner Wordfence




HIGH: 8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem types

CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Product status

Default status
unaffected

Any version
affected

Timeline

2026-02-24:Discovered
2026-03-06:Vendor Notified
2026-04-03:Disclosed

Credits

Craig Smith finder

Leonid Semenenko finder

References

www.wordfence.com/...-8563-4d25-9963-ed3664b4901d?source=cve

plugins.trac.wordpress.org/...ts.php&old=3471614&new=3483044

cve.org (CVE-2026-3666)

nvd.nist.gov (CVE-2026-3666)

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