CVE-2026-3300 Details.
Everest Forms Pro <= 1.9.12 - Unauthenticated RCE via Calculation Formula Injection
Atlas does not check this one. Needs requests that change data.
To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check.
About CVE-2026-3300. What It Means.
The Everest Forms Pro plugin for WordPress is vulnerable to Remote Code Execution via PHP Code Injection in all versions up to, and including, 1.9.12. This is due to the Calculation Addon's process_filter() function concatenating user-submitted form field values into a PHP code string without proper escaping before passing it to eval(). The sanitize_text_field() function applied to input does not escape single quotes or other PHP code context characters. This makes it possib…
Affected Product. What Is Hit.
- Vendor
- wpeverest
- Product
- Wpeverest Everest Forms Pro
References. Where To Read More.
- https://www.wordfence.com/threat-intel/vulnerabilities/id/389c0b89-e408-4ad5-9723-a16b745771f0?source=cve
- https://plugins.trac.wordpress.org/browser/everest-forms/tags/3.4.3/includes/class-evf-form-task.php#L584
- https://everestforms.net/changelog/
- https://www.wordfence.com/blog/2026/06/attackers-actively-exploiting-critical-vulnerability-in-everest-forms-pro-plugin/
FAQ
Common Questions.
Everest Forms Pro <= 1.9.12 - Unauthenticated RCE via Calculation Formula Injection. The Everest Forms Pro plugin for WordPress is vulnerable to Remote Code Execution via PHP Code Injection in all versions up to, and including, 1.9.12. This is due to the Calculation Addon's process_filter() function concatenating user-submitted form field values into a PHP code string without proper escaping before passing it to eval(). The sanitize_text_field() function applied to input does not escape single quotes or other PHP code context characters. This makes it possib…
No. To test for this one, the check would have to send requests that could change data on the site. Atlas only ever reads public pages, so it does not run this check. The facts about CVE-2026-3300 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-3300 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Wpeverest Everest Forms Pro to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-3300. Atlas does not run a check for it, so nothing here says whether a particular site is affected.