WP Everest Everest Forms Plugin up to 3.6.2 on WordPress nopriv everest_forms_get_form_update_nonce information disclosure

Summaryinfo

A vulnerability, which was classified as problematic, was found in WP Everest Everest Forms Plugin up to 3.6.2. This vulnerability affects the function nopriv everest_forms_get_form_update_nonce. Executing a manipulation can lead to information disclosure. This vulnerability is tracked as CVE-2026-91153. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability has been found in WP Everest Everest Forms Plugin up to 3.6.2 and classified as problematic. This vulnerability affects the function nopriv everest_forms_get_form_update_nonce. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

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.

The advisory is shared for download at wordfence.com. This vulnerability was named CVE-2026-91153 since 09/14/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 10/29/2026). The MITRE ATT&CK project declares the attack technique as T1592.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• WP Everest

Name

• Everest Forms Plugin

Version

• 3.6.0
• 3.6.1
• 3.6.2

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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