Arbitrary File Deletion Vulnerability in wpForo Forum Plugin for WordPress
CVE-2026-110004

6.5MEDIUM

Key Information:

Vendor

WordPress
Status
WPforo Forum
Vendor
CVE Published:
7 November 2026

What is CVE-2026-110004?

The wpForo Forum plugin for WordPress contains a security flaw that allows authenticated users, including those with subscriber-level access, to delete arbitrary files from the server due to poor validation of file paths in the theme_delete function. This vulnerability particularly affects setups with a custom wpForo secondary usergroup lacking a defined WordPress role and with assigned theme-management capabilities. An attacker can leverage this weakness by self-registering and claiming the unsecured group, leading to potential remote code execution if crucial files like wp-config.php are deleted.

Affected Version(s)

wpForo Forum 0 <= 3.2.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/wpforo/tags/3....
https://plugins.trac.wordpress.org/browser/wpforo/tags/3....

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

jiahao
.