CVE-2026-110004 Details
Description
The wpForo Forum plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the theme_delete function in all versions up to, and including, 3.2.2 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). This exploit chain is reachable only on sites where an administrator has created a custom wpForo secondary usergroup with a blank WordPress role and the 'mth' (Manage Themes) capability; on such sites, an attacker can self-register and claim that group via the unguarded wpforo_secondary_groupids[] POST field, bypassing the role-based group filter and gaining theme-management access as a Subscriber.
A vulnerability allowing authenticated users with subscriber-level access and above to delete arbitrary files on the server has been identified in the wpForo Forum plugin for WordPress, in all versions through 3.2.2. This issue arises from inadequate file path validation in the theme_delete function. The vulnerability could lead to remote code execution if a critical file, such as wp-config.php, is deleted. Exploitation is possible on sites where an administrator has established a custom wpForo secondary user group with a blank WordPress role and the 'mth' (Manage Themes) capability. In such cases, an attacker can self-register and claim the group by using the unguarded wpforo_secondary_groupids[] POST field, bypassing the role-based group filter and gaining theme-management access as a subscriber.
Users are advised to update to wpForo Forum version 3.2.3 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Nov 7, 2026CISA-ADP
Assessed Nov 8, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-22 | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| wpForo Forum | <= 3.2.2 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 8, 2026 | CVE Modified | CISA-ADP |
| Nov 7, 2026 | New CVE Received | [email protected] |