FormCraft Plugin up to 3.9.14 on WordPress Input Sanitization formcraft-main.php html_entity_decode cross site scripting

Summaryinfo

A vulnerability has been found in FormCraft Plugin up to 3.9.14 and classified as problematic. Affected is the function html_entity_decode of the file formcraft-main.php of the component Input Sanitization. The manipulation leads to cross site scripting. This vulnerability is traded as CVE-2026-7232. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in FormCraft Plugin up to 3.9.14 and classified as problematic. This issue affects the function html_entity_decode of the file formcraft-main.php of the component Input Sanitization. The manipulation 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 FormCraft plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the '[parameter name]' parameter in all versions up to, and including, 3.9.14 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 exploit chain combines a server-side gap — where composite matrix sub-field keys such as field2_0 and field2_1 are never passed through the sanitization loop and are stored raw via $wpdb->insert() — with a client-side gap where DOMPurify is only invoked when typeof field.value === 'string', but matrix values arrive from the server as arrays, bypassing the check before being mapped to strings and injected into the DOM. Additionally, the same sink is reachable via a second attack vector: array-typed field values are passed through htmlentities() on submission but later reversed by html_entity_decode() at formcraft-main.php:2608 and :2122, restoring the malicious payload before storage and rendering.

The advisory is shared at wordfence.com. The identification of this vulnerability is CVE-2026-7232 since 04/27/2026. 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 are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1059.007 for this issue.

By approaching the search of inurl:formcraft-main.php it is possible to find vulnerable targets with Google Hacking.

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-2026-47878). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• WordPress Plugin

Name

• FormCraft Plugin

Version

• 3.9.0
• 3.9.1
• 3.9.2
• 3.9.3
• 3.9.4
• 3.9.5
• 3.9.6
• 3.9.7
• 3.9.8
• 3.9.9
• 3.9.10
• 3.9.11
• 3.9.12
• 3.9.13
• 3.9.14

CPE 2.3info

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• 🔒
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CPE 2.2info

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

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