CVE-2026-3300 | The Everest Forms Pro plugin for WordPress is vulnerable to … | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-3300
State: PUBLISHED
Assigner: Wordfence
Reserved: 2026-02-26 20:26 UTC
Published: 2026-03-31 01:24 UTC
Last updated: 2026-04-08 16:46 UTC
Primary CWE: CWE-94
CWE-94 Improper Control of Generation of Code ('Code Injecti…
Vendor / Product: WPEverest / Everest Forms Pro
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
WPEverest	Everest Forms Pro	—	0 ≤ 1.9.12

Weakness (CWE)

CWE	Source	Description
CWE-94	cna	CWE-94 Improper Control of Generation of Code ('Code Injection')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (3)