CVE-2025-7040: Auth Bypass (CVSS 8.2)

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.

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CVSS v3.1 Score

8.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L

Weakness Type (CWE)

CWE-862 Missing Authorization

References

Other References

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

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 8.2 (HIGH).

How severe is CVE-2025-7040? +

CVE-2025-7040 has a CVSS v3.1 score of 8.2 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-7040? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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