webaways NEX-Forms Plugin up to 9.2.2 on WordPress Submission Endpoint real_val__ cross site scripting

Summaryinfo

A vulnerability, which was classified as problematic, has been found in webaways NEX-Forms Plugin up to 9.2.2 on WordPress. This impacts an unknown function of the component Submission Endpoint. The manipulation of the argument real_val__ leads to cross site scripting. This vulnerability is referenced as CVE-2026-13040. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in webaways NEX-Forms Plugin up to 9.2.2 on WordPress. It has been rated as problematic. This issue affects an unknown functionality of the component Submission Endpoint. The manipulation of the argument real_val__ with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. Impacted is integrity. The summary by CVE is:

The NEX-Forms – Ultimate Forms Plugin for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'real_val__' parameter in all versions up to, and including, 9.2.2 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The submission endpoint is registered via wp_ajax_nopriv_submit_nex_form with no nonce verification, making it fully accessible to unauthenticated attackers without any CSRF token.

The weakness was published by Taichi Kashimura. It is possible to read the advisory at wordfence.com. The identification of this vulnerability is CVE-2026-13040 since 06/23/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

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

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-41487). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• WordPress Plugin

Vendor

• webaways

Name

• NEX-Forms Plugin

Version

• 9.2.0
• 9.2.1
• 9.2.2

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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