Vulnerability CVE-2024-4709
Published: 2024-05-18

Description:
The Contact Form Plugin by Fluent Forms for Quiz, Survey, and Drag & Drop WP Form Builder plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ??subject?? parameter in versions up to, and including, 5.1.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level permissions and above, and access granted by an administrator, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

 References:
https://www.wordfence.com/threat-intel/vulnerabilities/id/5fe317a6-a391-441a-aac8-c8fa57e73169?source=cve
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotification.php#L106
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotification.php#L164
https://plugins.trac.wordpress.org/browser/fluentform/trunk/app/Services/FormBuilder/Notifications/EmailNotification.php#L194
https://plugins.trac.wordpress.org/changeset/3088078/
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