Gravity Forms Plugin up to 2.9.28 on WordPress AJAX Endpoint sanitize_text_field cross site scripting

Summaryinfo

A vulnerability labeled as problematic has been found in Gravity Forms Plugin up to 2.9.28 on WordPress. This affects the function sanitize_text_field of the component AJAX Endpoint. Executing a manipulation can lead to cross site scripting. The identification of this vulnerability is CVE-2026-3492. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in Gravity Forms Plugin up to 2.9.28 on WordPress and classified as problematic. This vulnerability affects the function sanitize_text_field of the component AJAX Endpoint. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect integrity. CVE summarizes:

The Gravity Forms plugin for WordPress is vulnerable to Stored Cross-Site Scripting in all versions up to, and including, 2.9.28.1. This is due to a compound failure involving missing authorization on the `create_from_template` AJAX endpoint (allowing any authenticated user to create forms), insufficient input sanitization (`sanitize_text_field()` preserves single quotes), and missing output escaping when the form title is rendered in the Form Switcher dropdown (`title` attribute constructed without `esc_attr()`, and JavaScript `saferHtml` utility only escapes `&`, `<`, `>` but not quotes). This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary JavaScript that executes when an Administrator searches in the Form Switcher dropdown in the Form Editor.

The weakness was shared by Phú. The advisory is available at wordfence.com. This vulnerability was named CVE-2026-3492 since 03/03/2026. The exploitation appears to be easy. The attack can be initiated remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project.

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

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Productinfo

Type

• WordPress Plugin

Name

• Gravity Forms Plugin

Version

• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6
• 2.9.7
• 2.9.8
• 2.9.9
• 2.9.10
• 2.9.11
• 2.9.12
• 2.9.13
• 2.9.14
• 2.9.15
• 2.9.16
• 2.9.17
• 2.9.18
• 2.9.19
• 2.9.20
• 2.9.21
• 2.9.22
• 2.9.23
• 2.9.24
• 2.9.25
• 2.9.26
• 2.9.27
• 2.9.28

CPE 2.3info

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CPE 2.2info

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