CVE-2025-9129

Name of the Vulnerable Software and Affected Versions Flexi plugin for WordPress versions up to and including 4.28

Description The Flexi plugin for WordPress is susceptible to Stored Cross-Site Scripting through the flexi-form-tag shortcode. Insufficient input sanitization and output escaping on user-supplied attributes allow authenticated attackers with contributor-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page.

Recommendations Update the Flexi plugin to a version later than 4.28.