Litespeed Cache

The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the /wp-json/litespeed/v1/notify_ccss and /wp-json/litespeed/v1/notify_ucss REST API endpoints in all versions up to, and including, 7.7. These endpoints accept CSS content from QUIC.cloud callback notifications and store it to disk without sanitization. The stored content is later rendered inline frontend page loads without output escaping. The access control protecting these endpoints is IP-based validation that can potentially be bypassed when the WordPress site is deployed behind a reverse proxy, load balancer, or CDN with certain configurations. This makes it possible for unauthenticated attackers, under certain conditions, to inject arbitrary JavaScript into CCSS/UCSS content.

Published: 2026-05-27T07:45:55.498Z
Updated: 2026-05-27T10:28:19.176Z

The LiteSpeed Cache plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via URLs in all versions up to, and including, 7.5.0.1 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Published: 2025-10-29T09:27:57.311Z
Updated: 2026-04-08T17:10:46.784Z

The LiteSpeed Cache plugin for WordPress is vulnerable to Stored Cross-Site Scripting via plugin debug settings in all versions up to, and including, 6.4.1 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Published: 2024-09-25T08:31:05.854Z
Updated: 2026-04-08T16:33:20.032Z

Insufficiently Protected Credentials vulnerability in LiteSpeed Technologies LiteSpeed Cache litespeed-cache allows Authentication Bypass.This issue affects LiteSpeed Cache: from n/a through < 6.5.0.1.

Published: 2024-10-20T11:26:22.948Z
Updated: 2026-04-28T16:10:15.844Z

The LiteSpeed Cache plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 6.2.0.1. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the token setting and inject malicious JavaScript via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Published: 2024-07-24T03:17:17.104Z
Updated: 2026-04-08T17:03:31.910Z