The Forminator – Contact Form, Payment Form & Custom Form Builder WordPress plugin is vulnerable to stored cross-site scripting via the 'id' forminator_form shortcode attribute due to improper input sanitization and output escaping. This allows authenticated attackers with contributor-level or higher permissions to inject arbitrary web scripts that execute when the injected page is accessed. The vulnerability affects all versions up to 1.29.2. The CVSS 3.1 base score is 6.4 (AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N), reflecting network attack vector, low attack complexity, required privileges, no user interaction, scope change, and limited confidentiality and integrity impact without availability impact. No patch or vendor advisory is currently available to confirm remediation status.

An attacker with contributor-level or higher permissions can exploit this vulnerability to inject persistent malicious scripts into pages generated by the Forminator plugin. These scripts execute in the context of users visiting the affected pages, potentially leading to session hijacking, defacement, or other client-side impacts. The vulnerability does not affect availability and has limited confidentiality and integrity impact. There are no known active exploits reported.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, restrict contributor-level permissions to trusted users only and consider disabling or limiting use of the vulnerable shortcode attribute. Monitor vendor channels for updates and apply patches promptly once available.