CVE-2025-65954
6.1 · MEDIUMOverview
CVE-2025-65954 is a medium-severity vulnerability affecting simplesamlphp simplesamlphp-module-casserver. It was published on May 18, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
SimpleSAMLphp-casserver is a CAS 1.0 and 2.0 compliant CAS server in the form of a SimpleSAMLphp module. In versions below 6.3.1 and 7.0.0, the logout endpoint accepts a url query parameter to redirect to. casserver treats that url as trusted, and either (depending on configuration) redirects the browser there, or shows a "you've been logged out" page with a link to continue to that url. Impacted configs include 'enable_logout' => true, and 'skip_logout_page' -> true. This issue has been resolved in versions 6.3.1 and 7.0.0.
Remediation
Check the references section for vendor advisories and patches from simplesamlphp. Update simplesamlphp-module-casserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| simplesamlphp | simplesamlphp-module-casserver | >= 0, < 6.3.1 | Affected |
References
Frequently Asked Questions
What is CVE-2025-65954?
CVE-2025-65954 is a medium-severity vulnerability affecting simplesamlphp simplesamlphp-module-casserver. It was published on May 18, 2026 and has a CVSS 3.1 base score of 6.1 (MEDIUM).
How severe is CVE-2025-65954?
This vulnerability has a CVSS 3.1 base score of 6.1, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2025-65954?
Check the references section for vendor advisories and patches from simplesamlphp. Update simplesamlphp-module-casserver to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2025-65954?
CyberStrike's AI-powered security agents can automatically detect CVE-2025-65954 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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