Everest Forms <= 2.0.3 - Unauthorized Form Submission via Disabled Forms

5.3
Missing Authorization
CVE CVE-2023-51377
CVSS 5.3 (Medium)
Publicly Published December 26, 2023
Last Updated January 22, 2024
Researcher Revan Arifio

Description

The Everest Forms plugin for WordPress is vulnerable to unauthorized form submission due to a missing validation check in the do_task function in versions up to, and including, 2.0.3. This makes it possible for unauthenticated attackers to submit disabled forms.

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Vulnerability Details for Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI

Software Type Plugin
Software Slug everest-forms (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.0.3.1, or a newer patched version
Affected Version
  • <= 2.0.3
Patched Version
  • 2.0.3.1

Recent vulnerabilities in Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI

# Title CVE ID CVSS Researchers Date
1 Everest Forms <= 3.4.4 - Unauthenticated Server-Side Request Forgery via Upload Field 'Previous Value' CVE-2026-5096 5.3 h0xilo August 27, 2026
2 Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI <= 3.5.2 - Missing Authorization to Authenticated (Delegated+) Arbitrary Plugin Activation via REST API and AJAX Endpoints CVE-2026-13167 4.3 skyv3il August 15, 2026
3 Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI <= 3.4.8 - Reflected Cross-Site Scripting CVE-2026-57312 6.1 bekitousei June 25, 2026
4 Everest Forms <= 3.4.0 - Unauthenticated Information Exposure CVE-2026-11571 5.3 Duy Tran June 18, 2026
5 Everest Forms <= 3.4.0 - Unauthenticated Missing Authorization CVE-2026-12270 5.3 Pedro Pinho June 18, 2026
6 Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder <= 3.4.7 - Missing Authorization to Authenticated (Subscriber+) Email Sending CVE-2026-4888 4.3 Quốc Huy (jtwings) May 27, 2026
7 Everest Forms <= 3.4.4 - Unauthenticated Arbitrary File Read and Deletion via Upload Field 'old_files' Parameter CVE-2026-5478 8.1 Bao Le April 20, 2026
8 Everest Forms <= 3.4.3 - Unauthenticated PHP Object Injection via Form Entry Metadata CVE-2026-3296 9.8 0xsabre April 7, 2026
9 Everest Forms <= 3.4.1 - Unauthenticated Arbitrary Shortcode Execution CVE-2026-22422 6.5 Najib Sinjari September 26, 2025
10 Everest Forms <= 3.1.1 - Reflected Cross-Site Scripting CVE-2025-3421 6.1 mikemyers April 10, 2025

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