What the vulnerability does
01Description
The Inquiry Form to Posts or Pages plugin for WordPress is vulnerable to Cross-Site Request Forgery leading to Stored Cross-Site Scripting in version 1.0. This is due to missing nonce validation on the plugin settings update handler, combined with insufficient input sanitization on all user-supplied fields and missing output escaping when rendering stored values. The settings handler fires solely on the presence of `$_POST['inq_hidden'] == 'Y'` with no call to `check_admin_referer()` and no WordPress nonce anywhere in the form or handler. This makes it possible for unauthenticated attackers to inject arbitrary web scripts via a forged request that tricks a logged-in Administrator into visiting a malicious page.
Explanation of Vulnerability in Simple Terms
02Summary
The Inquiry form to posts or pages plugin for WordPress contains a cross-site request forgery (CSRF) vulnerability in versions up to 1.0. An attacker can craft a malicious webpage that, when visited by a logged-in site administrator, performs unwanted actions through the plugin without the admin's knowledge or consent. The vulnerability requires user interaction but does not require authentication.
What an attacker can do
03Attacker Capabilities
Trick a site admin into performing unwanted actions via the plugin by visiting a malicious webpage.
Potential impact on your site
04Site Impact
An attacker can modify plugin settings or submit forms on behalf of administrators without their consent.
Conditions required to exploit
05Prerequisites
Site admin must visit an attacker-controlled webpage while logged into WordPress.
Key dates
06Disclosure timeline
April 15, 2026
CVE published
April 16, 2026
Record updated
