SSRF in Wpxpo Wowoptin: Next-gen Popup Maker – Create Stunning Popups And Optins For Lead Generation
CVE-2026-4302
The WowOptin: Next-Gen Popup Maker plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 1.4.29. This is due to the plugin exposing a publicly accessible REST API endpoint (optn/v1/integrat…
Vulnerability class: SSRF (Server-Side Request Forgery)
EPSS: 0.001 (26.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N.
Affected products
Weakness classification (CWE)
References
- www.wordfence.com/threat-intel/vulnerabilities/id/b1c3e480-0221-4913-bcce-f34de…
- plugins.trac.wordpress.org/browser/optin/trunk/includes/integrations/implementa…
- plugins.trac.wordpress.org/browser/optin/tags/1.4.23/includes/integrations/impl…
- plugins.trac.wordpress.org/browser/optin/trunk/includes/integrations/implementa…
- plugins.trac.wordpress.org/browser/optin/tags/1.4.23/includes/integrations/impl…
- plugins.trac.wordpress.org/browser/optin/trunk/frontend/class-rest-frontend.php
- plugins.trac.wordpress.org/browser/optin/tags/1.4.23/frontend/class-rest-fronte…
- plugins.trac.wordpress.org/browser/optin/trunk/frontend/class-rest-frontend.php
- plugins.trac.wordpress.org/browser/optin/tags/1.4.23/frontend/class-rest-fronte…
- plugins.trac.wordpress.org/changeset
Frequently asked questions
- What is CVE-2026-4302?
- CVE-2026-4302 is a high-severity vulnerability in Wpxpo Wowoptin: Next-gen Popup Maker – Create Stunning Popups And Optins For Lead Generation, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.2/10. Published 2026-03-21.
- How severe is CVE-2026-4302?
- High severity. CVSS v3 base score is 7.2 out of 10.