Remote Code Execution Risk in Everest Forms Pro Plugin by WordPress
CVE-2026-3300

9.8CRITICAL

Key Information:

Vendor: WordPress
Status: Everest Forms Pro
Vendor: CVE Published:; 31 March 2026

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👾 Exploit Exists🟡 Public PoC🟣 EPSS 40%📰 News Worthy

What is CVE-2026-3300?

The Everest Forms Pro plugin for WordPress has a significant vulnerability that allows for Remote Code Execution through PHP Code Injection. This affects all versions up to and including 1.9.12. The vulnerability arises from the Calculation Addon's process_filter() function, which improperly concatenates user-submitted form field values into an unescaped PHP code string before passing it to eval(). The use of sanitize_text_field() on input fails to adequately escape problematic characters such as single quotes, enabling unauthenticated attackers to inject and execute arbitrary PHP code on the server. This exposure affects any string-type form field utilizing the 'Complex Calculation' feature, putting users at risk of malicious exploitation.

Affected Version(s)

Everest Forms Pro 0 <= 1.9.12

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-3300
Created by HORKimhab

News Articles

BleepingComputer

CVE-2026-3300

Critical Everest Forms Pro flaw exploited to take over WordPress sites

Hackers are actively exploiting a critical vulnerability (CVE-2026-3300) in the Everest Forms Pro plugin, which lets them take complete control of a WordPress website.

3 weeks ago