CVE-2026-110004

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.

• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Actions.php#L2405
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Actions.php#L2409
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/classes/Members.php#L1428
• https://plugins.trac.wordpress.org/browser/wpforo/tags/3.2.2/includes/functions.php#L1659
• https://plugins.trac.wordpress.org/changeset?reponame=&new=3778162%40wpforo%2Ftags%2F3.2.3&old=3717441%40wpforo%2Ftags%2F3.2.2
• https://wordpress.org/plugins/wpforo/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/268f05d4-5f93-4d89-aa7f-c8731599dbc7?source=cve

• HIGHCVE-2012-20002PoC
• HIGHCVE-2014-125130PoC
• HIGHCVE-2014-125133PoC
• HIGHCVE-2014-125134PoC
• HIGHCVE-2015-20123PoC
• HIGHCVE-2015-20124PoC
• HIGHCVE-2015-20125PoC
• HIGHCVE-2016-20100PoC

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