CVE-2026-0626 WPFunnels <= 3.7.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wpf_optin_form' Shortcode
Authenticated contributors can inject arbitrary scripts via the optin form shortcode, leading to stored XSS execution for other users.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-0626?
CVE-2026-0626 is a medium-severity cross-site scripting vulnerability in getwpfunnels WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell, published on 4 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-79
Which versions are affected by CVE-2026-0626?
How do I fix CVE-2026-0626?
No fix has been published for CVE-2026-0626 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-0626 being exploited?
There is no known exploitation of CVE-2026-0626 in the wild and no public exploit code.
Sources
Also known as GHSA-3j3p-4gr4-4r5f.