CVE-2026-3300
CRITICAL EXPLOITED NUCLEIEverest Forms Pro <= 1.9.12 - Unauthenticated Remote Code Execution via Calculation Field
Title source: cnaExploitation Summary
CVE-2026-3300 has been observed exploited in the wild (reported by VulnCheck KEV). EIP tracks 3 public exploits from researchers including HORKimhab, adamshaikhma. A Nuclei detection template is also available.
AI-analyzed exploit summary The repository contains a markdown file describing CVE-2026-3300, an unauthenticated RCE vulnerability in Everest Forms Pro <= 1.9.12 via PHP code injection in the Calculation Addon. However, no actual exploit code is present, and the file links to external repositories and an encrypted backup PoC.
Description
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 possible for unauthenticated attackers to inject and execute arbitrary PHP code on the server by submitting a crafted value in any string-type form field (text, email, URL, select, radio) when a form uses the "Complex Calculation" feature.
Exploits (3)
The repository contains a markdown file describing CVE-2026-3300, an unauthenticated RCE vulnerability in Everest Forms Pro <= 1.9.12 via PHP code injection in the Calculation Addon. However, no actual exploit code is present, and the file links to external repositories and an encrypted backup PoC.
The repository claims to exploit CVE-2026-3300 (Everest Forms Pro RCE via PHP code injection) but provides no actual exploit code, instead redirecting users to an external download link (tinyurl.com). The README lacks technical depth and reads like a sales pitch.
This repository contains a functional exploit for CVE-2026-3300, targeting Everest Forms Pro <= 1.9.12 via unauthenticated PHP code injection in the Calculation Addon. The PoC includes multiple exploitation modes (scan, command execution, reverse shell) and demonstrates the vulnerability through crafted HTTP requests.
Nuclei Templates (1)
body="/wp-content/plugins/everest-forms-pro/"
Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H