Cloud SAML SSO <= 1.0.19 - Missing Authorization to Unauthenticated Settings Modification via set_organization_settings Action

Missing Authorization
CVE CVE-2025-7040
CVSS High (8.2)
Publicly Published September 5, 2025
Last Updated September 6, 2025
Researcher kr0d
Description

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.

References

1 affected software package

Software Type Plugin
Software Slug cloud-sso-single-sign-on (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 1.0.19
Patched Version
  • 1.0.20
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