Description
The Breeze - WordPress Cache Plugin plugin for WordPress is vulnerable to unauthorized cache clearing in all versions up to, and including, 2.2.21. This is due to the REST API endpoint `/wp-json/breeze/v1/clear-all-cache` being registered with `permission_callback => '__return_true'` and authentication being disabled by default when the API is enabled. This makes it possible for unauthenticated attackers to clear all site caches (page cache, Varnish, and Cloudflare) via a simple POST request, granted the administrator has enabled the API integration feature.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| cloudways | Breeze Cache | ≤ 2.2.21 | — |
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/5a3c16a5-65e5-4fe9-b7f0-2e021534c054?source=cve
- https://plugins.trac.wordpress.org/browser/breeze/tags/2.2.21/inc/class-breeze-api.php#L22
- https://plugins.trac.wordpress.org/browser/breeze/tags/2.2.21/inc/class-breeze-api.php#L19
- https://plugins.trac.wordpress.org/browser/breeze/tags/2.2.21/inc/breeze-admin.php#L749
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3425199%40breeze&new=3425199%40breeze&sfp_email=&sfph_mail=