CVE-2026-91153
Received Received - Intake

Sensitive Information Exposure in Everest Forms WordPress Plugin

Publication date: 2026-10-29

Last updated on: 2026-10-29

Assigner: Wordfence

Description
The Everest Forms – Contact Form, Payment Form, Quiz, Survey & Custom Form Builder with AI plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.6.2 via the process. This makes it possible for unauthenticated attackers to extract arbitrary WordPress post meta values — including license keys, API tokens, SMTP credentials, and Stripe or AWS secrets stored on any post type — via form submission notification emails or stored entries. The submission nonce is publicly rendered in every embedded form and can additionally be minted anonymously via the nopriv everest_forms_get_form_update_nonce action, meaning no account or prior authentication of any kind is required to complete the exploit.

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Meta Information

Published
2026-10-29
Last Modified
2026-10-29
Generated
2026-10-29
AI Q&A
2026-10-29
EPSS Evaluated
N/A
NVD
CVE-2026-91153
EUVD
EUVD-2026-112691

Affected Vendors & Products

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-200 The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

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Executive Summary

This vulnerability in the Everest Forms WordPress plugin allows unauthenticated attackers to access sensitive data like license keys, API tokens, SMTP credentials, and payment processor secrets. The issue occurs because the plugin exposes submission nonces publicly and allows anonymous nonce generation, enabling attackers to extract arbitrary WordPress post meta values through form submissions or stored entries.

Detection Guidance

Check for unauthorized access to sensitive data like license keys, API tokens, or credentials in form submission emails or stored entries. Inspect WordPress post meta values for unexpected exposure via the Everest Forms plugin.

Impact Analysis

Attackers could steal sensitive credentials or secrets stored in your WordPress site, leading to unauthorized access, data breaches, or financial fraud. If your site uses Stripe, AWS, or other integrations, those credentials could be exposed, allowing attackers to misuse your services or extract additional data.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating GDPR's data protection requirements and HIPAA's safeguards for protected health information. Organizations may face fines or penalties for failing to protect such data adequately.

Mitigation Strategies

Update the Everest Forms plugin to the latest version beyond 3.6.2. Review form submissions and emails for leaked sensitive data. Disable nonces in embedded forms if not required. Monitor for unauthorized access attempts.

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