CVE-2026-3296 Scanner
CVE-2026-3296 Scanner - Deserialization of Untrusted Data vulnerability in Everest Forms WordPress Plugin
Used 3.1k times · 3.4k assets checked · domain, subdomain, ipv4
CVE
CVE-2026-3296
9.8
CVSScritical
Exploitable remotely over the internet · no authentication required.
Description
The Everest Forms plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 3.4.3 via deserialization of untrusted input from form entry metadata. This is due to the html-admin-page-entries-view.php file calling PHP's native unserialize() on stored entry meta values without passing the allowed_classes parameter. This makes it possible for unauthenticated attackers to inject a serialized PHP object payload through any public Everest Forms form field. The payload survives sanitize_text_field() sanitization (serialization control characters are not stripped) and is stored in the wp_evf_entrymeta database table. When an administrator views entries or views an individual entry, the unsafe unserialize() call processes the stored data without class restrictions.
Attack Vector
Network
Privileges Req.
None
User Interaction
None
everest forms – contact form, payment form, quiz, survey & custom form builder
Updated Oct 12, 2026View on NVD →
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CVE history: everest forms – contact form, payment form, quiz, survey & custom form builder
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