CVE-2025-27773 (GCVE-0-2025-27773)
Vulnerability from cvelistv5
Published
2025-03-11 19:04
Modified
2025-05-09 20:03
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Summary
The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.17.0 and 5.0.0-alpha.20, there is a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect binding can cause the application to accept an unsigned message. Versions 4.17.0 and 5.0.0-alpha.20 contain a fix for the issue.
References
Impacted products
Vendor Product Version
simplesamlphp saml2 Version: < 4.17.0
Version: >= 5.0.0-alpha.1, < 5.0.0-alpha.20
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