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.
CVE-2026-6248 is a high severity with CVSS 8.1 Remote Code Execution issue affecting the Plugin wpForo Forum. It affects Versions up to 3.0.5 and is fixed in 3.0.6.
CVE-2026-6248 is tracked for the Plugin wpForo Forum as high severity with CVSS 8.1. The affected range is Versions up to 3.0.5. Update wpForo Forum to 3.0.6 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
wpforo
View on wordpress.org
|
| CVE | CVE-2026-6248 |
| Patched Versions |
3.0.6
|
| Affected Versions |
Versions up to 3.0.5
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
wpForo Forum <= 2.3.3 - Authenticated (Contributor+) SQL Injection
wpForo Forum <= 2.2.3 - Unauthenticated Privilege Escalation
wpForo < = 1.5.1 - Privilege Escalation
wpForo Forum <= 1.4.12 - SQL Injection
wpForo Forum <= 2.4.16 - Authenticated (Subscriber+) Arbitrary File Deletion via Post Body
wpForo Forum <= 2.4.13 - Authenticated (Subscriber+) PHP Object Injection
wpForo Forum <= 2.4.3 - Authenticated (Subscriber+) Privilege Escalation
wpForo Forum <= 2.1.7 - Authenticated (Subscriber+) Local File Include, Server-Side Request Forgery, and PHAR Deserialization via file_get_contents
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