CVE-2026-91153 Details
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.
A vulnerability allowing unauthenticated sensitive information exposure has been identified in the Everest Forms WordPress plugin, in all versions through 3.6.2. This issue arises from smart-tag injection in form field values, specifically through the {post_meta key=...} tags. Exploitation of this vulnerability allows for the extraction of arbitrary WordPress post meta values, including sensitive data such as license keys, API tokens, SMTP credentials, and Stripe or AWS secrets, from any post type. The leaked information can be accessed through form submission notification emails or stored entries. The vulnerability is facilitated by the public rendering of submission nonces in embedded forms, which can be anonymously minted via a specific action, without the need for an account or prior authentication.
Users are advised to update the Everest Forms plugin to version 3.6.3 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 29, 2026CISA-ADP
Assessed Oct 29, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-200 | Exposure of Sensitive Information to an Unauthorized Actor | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Everest Forms | <= 3.6.2 (semver) |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 29, 2026 | CVE Modified | CISA-ADP |
| Oct 29, 2026 | New CVE Received | [email protected] |