Description
The WPFunnels – Easy Funnel Builder To Optimize Buyer Journeys And Get More Leads & Sales plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'wpf_optin_form' shortcode in all versions up to, and including, 3.7.9 due to insufficient input sanitization and output escaping of the 'button_icon' parameter. This makes it possible for authenticated attackers, with contributor level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Problem types
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Product status
Any version
Timeline
| 2026-01-05: | Discovered |
| 2026-01-05: | Vendor Notified |
| 2026-04-03: | Disclosed |
Credits
Paolo Tresso
References
www.wordfence.com/...-b6c5-412e-8d90-ba42d3fb21f6?source=cve
plugins.trac.wordpress.org/...codes/templates/optin/form.php