boldgrid weForms Plugin up to 1.6.27 on WordPress AJAX entries prepare_entry args cross site scripting

Summaryinfo

A vulnerability was found in boldgrid weForms Plugin up to 1.6.27 on WordPress and classified as problematic. This affects the function prepare_entry of the file /wp-json/weforms/v1/forms/{id}/entries/ of the component AJAX Handler. Such manipulation of the argument args leads to cross site scripting. This vulnerability is referenced as CVE-2026-2707. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in boldgrid weForms Plugin up to 1.6.27 on WordPress. It has been rated as problematic. Affected by this issue is the function prepare_entry of the file /wp-json/weforms/v1/forms/{id}/entries/ of the component AJAX Handler. The manipulation of the argument args 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. CVE summarizes:

The weForms plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the REST API entry submission endpoint in all versions up to, and including, 1.6.27. This is due to inconsistent input sanitization between the frontend AJAX handler and the REST API endpoint. When entries are submitted via the REST API (`/wp-json/weforms/v1/forms/{id}/entries/`), the `prepare_entry()` method in `class-abstract-fields.php` receives the WP_REST_Request object as `$args`, bypassing the `weforms_clean()` fallback that sanitizes `$_POST` data for frontend submissions. The base field handler only applies `trim()` to the value. This makes it possible for authenticated attackers, with Subscriber-level access and above, to inject arbitrary web scripts into form entry hidden field values via the REST API that execute when an administrator views the form entries page, where data is rendered using a Vue.js `v-html` directive without escaping.

The weakness was published by Muhammad Sharief. The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-2707 since 02/18/2026. The exploitation is known to be easy. The attack may be launched 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

Vendor

• boldgrid

Name

• weForms Plugin

Version

• 1.6.0
• 1.6.1
• 1.6.2
• 1.6.3
• 1.6.4
• 1.6.5
• 1.6.6
• 1.6.7
• 1.6.8
• 1.6.9
• 1.6.10
• 1.6.11
• 1.6.12
• 1.6.13
• 1.6.14
• 1.6.15
• 1.6.16
• 1.6.17
• 1.6.18
• 1.6.19
• 1.6.20
• 1.6.21
• 1.6.22
• 1.6.23
• 1.6.24
• 1.6.25
• 1.6.26
• 1.6.27

CPE 2.3info

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CPE 2.2info

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Entryinfo

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