PT-2026-33825 · Tomdever · Wpforo Forum

Jude Nwadinobi + 1 · Published 2026-04-20 · Updated 2026-04-20 · CVE-2026-6248

NVD

CVSS v3.1

8.1

High

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

The wpForo Forum plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to and including 3.0.5. This is due to two compounding flaws: the Members::update() method does not validate or restrict the value of file-type custom profile fields, allowing authenticated users to store an arbitrary path instead of a legitimate upload path; and the wpforo fix upload dir() sanitization function in ucf file delete() only remaps paths that match the expected pattern, and it is passed directly to the unlink() function. This makes it possible for authenticated attackers, with subscriber-level access and above, to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Note: The vulnerability requires a file custom field, which requires the wpForo - User Custom Fields addon plugin.

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-6248

Affected Products

Wpforo Forum

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-6248 · Security Note
• https://wordfence.com/threat-intel/vulnerabilities/id/79cc102a-6777-41be-a395-8c2eeb6deb73?source=cve · Note
• https://plugins.trac.wordpress.org/changeset/3509997/wpforo · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.16/wpforo/classes/Actions.php#L1418 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.16/wpforo/includes/functions.php#L3187 · Note
• https://plugins.trac.wordpress.org/browser/wpforo/tags/2.4.16/wpforo/classes/Members.php#L891 · Note