Gutena Forms Plugin up to 1.9.0 on WordPress check_ajax_referer authorization

Summaryinfo

A vulnerability has been found in Gutena Forms Plugin up to 1.9.0 and classified as critical. This issue affects the function check_ajax_referer. This manipulation causes authorization. This vulnerability appears as CVE-2026-11995. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in Gutena Forms Plugin up to 1.9.0 and classified as critical. Affected by this vulnerability is the function check_ajax_referer. The manipulation with an unknown input leads to a authorization vulnerability. The CWE definition for the vulnerability is CWE-639. The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data. As an impact it is known to affect integrity, and availability. The summary by CVE is:

The Gutena Forms – Contact Form, Survey Form, Feedback Form, Booking Form, and Custom Form Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.9.0. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to modify the read/unread status of or permanently trash arbitrary form submission entries belonging to any form. The nonce issued by check_ajax_referer() does not function as an authorization barrier because the nonce action 'gutena_Forms' is emitted to unauthenticated visitors via wp_localize_script() on any public page that contains a Gutena Forms block, making it freely obtainable by anonymous attackers.

The advisory is shared at wordfence.com. This vulnerability is known as CVE-2026-11995 since 06/11/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 08/01/2026).

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Name

• Gutena Forms Plugin

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9.0

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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