What the vulnerability does
01Description
The Cloud SAML SSO plugin for WordPress is vulnerable to Identity Provider Deletion due to a missing capability check on the delete_config action of the csso_handle_actions() function in all versions up to, and including, 1.0.19. This makes it possible for unauthenticated attackers to delete any configured IdP, breaking the SSO authentication flow and causing a denial-of-service.
Explanation of Vulnerability in Simple Terms
02Summary
Cloud SAML SSO versions up to 1.0.19 contain a missing authentication control that allows unauthenticated attackers to modify data or disrupt service availability over the network. No user interaction is required. The vulnerability affects the integrity and availability of the service but not confidentiality. Update to a version newer than 1.0.19.
What an attacker can do
03Attacker Capabilities
Modify data or disrupt service availability without authentication.
Potential impact on your site
04Site Impact
Unauthorized users can alter configuration or cause service outages without logging in.
Conditions required to exploit
05Prerequisites
Network access only; no authentication or user interaction required.
Key dates
06Disclosure timeline
September 6, 2025
CVE published
April 8, 2026
Record updated