CVE Alert: CVE-2025-7040 – cloudinfrastructureservices – Cloud SAML SSO – Single Sign On Login
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.
AI Summary Analysis
Risk verdict
Why this matters
Most likely attack path
Who is most exposed
Detection ideas
- Unauthorised POSTs to set_organization_settings in the plugin’s action handler.
- Unexpected changes to organization settings or SSO configuration (signing/encryption toggles) in wp_options or related logs.
- Absence of CSRF nonce checks or capability validation in CSSO_ActionHandler.php.
- Admin-ajax or plugin endpoints accessed without authenticated sessions.
- Anomalous admin activity coinciding with config changes.
Mitigation and prioritisation
- Apply the patched version (1.0.19) or newer; if unavailable, disable the plugin until fixed.
- Enforce authentication and proper capability checks for set_organization_settings; add CSRF nonce validation.
- Implement WAF/IPS rules to block unauthenticated attempts to invoke the action.
- Audit and constrain admin-access to the WordPress instance; review and revert unintended config changes.
- Schedule testing in staging, then controlled production rollout; update change-management tickets.
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