Executive brief
The Hippoo Mobile App for WooCommerce plugin for WordPress contains a critical security flaw that allows unauthorized individuals to gain full control over a website. By exploiting a logic error in how the plugin checks for user permissions, an attacker can bypass security measures and reset the password of any user, including the site administrator. This could lead to a complete takeover of the online store, resulting in the theft of customer data or disruption of business operations.
Technical details
The Hippoo Mobile App for WooCommerce plugin for WordPress (up to version 1.9.4) suffers from an authentication bypass due to logic conflation in the HippooPermissions::get_user_permissions() function. This function returns a null sentinel value for both administrators and unauthenticated visitors, which the has_role_access() function incorrectly interprets as having full administrative privileges. Consequently, the plugin's REST route cloning mechanism assigns a permissive callback to core WordPress and WooCommerce endpoints under the /wc-hippoo/v1/ext/ prefix. An unauthenticated attacker can exploit this by sending a POST request to the cloned user endpoint to reset any user's password, including administrators, leading to full site compromise.
Affected products
- Hippoo Hippoo Mobile App for WooCommerce Up to and including 1.9.4
Timeline
- 2026-06-05: disclosed
- 2026-06-05: advisory
References
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/permissions.php
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/permissions.php
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/permissions.php
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/permissions.php
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/permissions.php
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/web_api.php
- https://plugins.trac.wordpress.org/browser/hippoo/tags/1.8.5/app/web_api_auth.php