CVE-2026-91092
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
The wpForo Forum plugin for WordPress in versions up to and including 3.1.5 is vulnerable to authorization bypass due to improper verification of user authorization. An authenticated attacker with subscriber-level access or higher can take over another guest author's forum post and modify its title, body, author name, and stored owner email address.
Risk Assessment
An attacker can modify forum content and impersonate other authors, undermining trust in the forum and potentially spreading false information.
Recommendation
Update the wpForo Forum plugin to a version newer than 3.1.5, and in the meantime consider disabling guest posting and editing.
Other vulnerabilities in wpForo Forum
See all- CVE-2026-49767Critical
There is a vulnerability in wpForo Forum versions up to 3.1.0 related to unauthenticated broken authentication.
- CVE-2026-49769Critical
There is an unauthenticated PHP Object Injection vulnerability in wpForo Forum versions <= 3.1.0.
- CVE-2026-40798Critical
There is an unauthenticated SQL injection vulnerability in wpForo Forum versions up to 3.0.4.
- CVE-2026-42682Critical
The wpForo Forum plugin for WordPress has missing authorization, allowing exploitation of incorrectly configured access control security levels.
- CVE-2026-93747Medium
The wpForo Forum plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'telegram' profile field in versions up to and including 3.1.6. The raw $_POST['data'] array is copied into $custom_fields before validate() and sanitize() run, leaving it unsanitized when persisted.
- CVE-2026-93772Medium
Cross Site Scripting (XSS) vulnerability in the wpForo Forum plugin in versions up to and including 3.1.5. The vulnerability can be exploited by a user with Subscriber privileges.
- CVE-2026-5097High
The wpForo Forum plugin for WordPress up to version 2.4.17 is vulnerable to SQL Injection via the 'referer' parameter. Insufficient escaping and lack of preparation on the SQL query allow unauthenticated attackers to append additional SQL queries, which can be used to extract sensitive information from the database.
- CVE-2026-12698Medium
The wpForo Forum WordPress plugin before 3.1.3 does not restrict which profile fields a member may set when editing their own account. This allows subscriber-level users to write administrator-controlled account-state and reputation fields on their own profile, including self-activating a pending or banned account and forging their forum reputation score.
- CVE-2026-12696Medium
The wpForo Forum WordPress plugin before 3.1.2 does not sanitize and escape a user profile field before outputting it inside an HTML attribute on the public participant profile page, allowing users with a subscriber-level account to inject JavaScript that executes in the browser of any visitor who views the profile, including a logged-in administrator.
- CVE-2026-12697Medium
The wpForo Forum WordPress plugin before 3.1.2 does not verify that an AI chat conversation belongs to the requesting user before deleting its messages, allowing users with a subscriber-level account to permanently delete the stored AI chat message history of any other user.
Original NVD description (English source)
The wpForo Forum plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 3.1.5. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to take over another guest author's forum post and modify its title, body, author name, and stored owner email address. This requires that guest posting and editing are enabled on the forum, and that the attacker knows the target guest author's email address.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS