WPFunnels <= 3.7.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wpf_optin_form' Shortcode
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.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell | <= 3.7.9 | 3.8.0 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N- Weakness (CWE)
CWE-79- Platform
- WordPress
- Package
WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell- Disclosed
- 03.04.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 2130847a-b6c5-412e-8d90-ba42d3fb21f6 - Wordfence Intelligence
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Copyright 2012-2026 Defiant Inc.
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Vulnerability history: WPFunnels – Funnel Builder for WooCommerce with Checkout & One Click Upsell
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 26
- First → latest
- 12.2022 10.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 2
- Medium 22
Disclosures per year
- 2022: 2
- 2023: 3
- 2024: 2
- 2025: 5
- 2026: 14
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WPFunnels <= 3.7.9 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'wpf_optin_form' Shortcode this entry
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