Live › vulnerability › CVE-2026-91152
The Everest Forms form builder plugin for WordPress does not sanitize the evf_toast_type parameter, so a crafted link can inject script into a page. An attacker who tricks a logged-in user into clicking the link can run scripts in that user's browser session.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-29 10:24 UTC. All times on this page are UTC.
Sites running the Everest Forms plugin version 3.6.2 or earlier are exposed through a crafted link that the attacker must get a user to click. The sources do not say whether any non-default configuration is needed. Sites without this plugin can skip it.
No product ranges from the sources yet.
3.6.2 or earlier in the plugin header3.6.2 are affectedEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'evf_toast_type' parameter in all versions up to, and including, 3.6.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link. Exploitation requires the sibling evf_toast parameter to decode successfully via atob(), but this is a trivially attacker-controlled prerequisite.
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