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7.2

WowOptin WordPress Plugin Allows Hackers to Control Server Actions

CVE-2026-4302
Summary

The WowOptin WordPress plugin exposes a security risk that allows hackers to make unauthorized requests to any website or server connected to the plugin, potentially stealing or modifying sensitive information. This affects all versions of the plugin up to 1.4.29. To protect your website, update the plugin to a version that fixes this issue or consider replacing it with a safer alternative.

Original title
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 acce...
Original description
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/integration-action) with a permission_callback of __return_true that passes user-supplied URLs directly to wp_remote_get() and wp_remote_post() in the Webhook::add_subscriber() method without any URL validation or restriction. The plugin does not use wp_safe_remote_get/post which provide built-in SSRF protection. This makes it possible for unauthenticated attackers to make web requests to arbitrary locations originating from the web application, which can be used to query and modify information from internal services.
nvd CVSS3.1 7.2
Vulnerability type
CWE-918 Server-Side Request Forgery (SSRF)
Published: 21 Mar 2026 · Updated: 21 Mar 2026 · First seen: 21 Mar 2026