CVE-2025-7040
CVE-2025-7040 is a high-severity vulnerability with a CVSS 3.x base score of 8.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.
Key facts
- Severity: High (CVSS 3.x base score 8.2)
- EPSS exploit prediction: 0% (17th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-34021
- Weakness: CWE-862
- Published:
- Last modified:
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.
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.
- How severe is CVE-2025-7040?
- CVE-2025-7040 has a CVSS 3.x base score of 8.2, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability low.
- Is CVE-2025-7040 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (17th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2025-7040?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2025-7040 have an EU (EUVD) identifier?
- Yes. CVE-2025-7040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34021.
- When was CVE-2025-7040 published?
- CVE-2025-7040 was published on 2025-09-06 and last updated on 2026-06-17.
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
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