CVE-2025-7040

The Cloud SAML SSO plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'set_organization_settings' action of the csso_handle_actions() function in all versions up to, and including, 1.0.19. The handler reads client-supplied POST parameters for organization settings and passes them directly to update_option() without any check of the user’s capabilities or a CSRF nonce. This makes it possible for unauthenticated attackers to change critical configuration (including toggling signing and encryption), potentially breaking the SSO flow and causing a denial-of-service.

• CWE-862

• https://plugins.trac.wordpress.org/browser/cloud-sso-single-sign-on/tags/1.0.19/assets/CSSO_Init.php
• https://plugins.trac.wordpress.org/browser/cloud-sso-single-sign-on/tags/1.0.19/assets/base/CSSO_ActionHandler.php
• https://plugins.trac.wordpress.org/browser/cloud-sso-single-sign-on/tags/1.0.19/assets/base/CSSO_services.php
• https://plugins.trac.wordpress.org/browser/cloud-sso-single-sign-on/tags/1.0.19/saml-sso-plugin.php
• https://plugins.trac.wordpress.org/browser/cloud-sso-single-sign-on/trunk/assets/base/CSSO_ActionHandler.php?rev=3354459#L202
• https://wordpress.org/plugins/cloud-sso-single-sign-on/#developers
• https://www.wordfence.com/threat-intel/vulnerabilities/id/59622166-3316-42e5-bf28-69eb38231755?source=cve

Published

Sep 6, 2025

Last Modified

Jun 17, 2026

Status

Deferred

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