PT-2026-30347 · WordPress · Wpforo Forum+1

Craig Smith + 1 · CVE-2026-3666 · Published 2026-04-04 · Updated 2026-04-13

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions wpForo Forum plugin for WordPress versions up to and including 2.4.16

Description The wpForo Forum plugin for WordPress is susceptible to arbitrary file deletion due to a missing file name/path validation against path traversal sequences. Authenticated attackers with subscriber level access or higher can delete arbitrary files on the server by embedding a crafted path traversal string within a forum post body and then deleting the post.

Recommendations Update the wpForo Forum plugin to a version later than 2.4.16.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-3666

Affected Products

Wordpress

Wpforo Forum

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2026-3666 · Security Note
• https://twitter.com/TheHackerWire/status/2040614144098140191 · Twitter Post
• https://wordfence.com/threat-intel/vulnerabilities/id/f215e320-8563-4d25-9963-ed3664b4901d?source=cve · Note
• https://reddit.com/r/wpsafety/comments/1scywd0/weekly_cve_roundup_critical_rce_in_everest_forms · Reddit Post
• https://twitter.com/CVEnew/status/2040481234758046027 · Twitter Post
• https://twitter.com/cyberbivash/status/2040418073648169103 · Twitter Post
• https://twitter.com/CveFindCom/status/2040394668102349065 · Twitter Post
• https://i.redd.it/vebrk5flqxug1.png · Reddit Post
• 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 · Note