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Vulnerability details: VCID-wbt9-snjj-uuea
Vulnerability ID VCID-wbt9-snjj-uuea
Aliases CVE-2018-7644
Summary Improper signature validation The `XmlSecLibs` library as used in the saml2 library in SimpleSAMLphp incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.
Status Published
Exploitability None
Weighted Severity None
Risk None
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-1035 OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CWE-347 Improper Verification of Cryptographic Signature
CWE-937 OWASP Top Ten 2013 Category A9 - Using Components with Known Vulnerabilities
System Score Found at
There are no known severity scores.
Reference id Reference type URL
https://simplesamlphp.org/security/201802-01
CVE-2018-7644 https://nvd.nist.gov/vuln/detail/CVE-2018-7644
No exploits are available.
There are no known vectors.

No EPSS data available for this vulnerability.

Date Actor Action Source VulnerableCode Version
2026-06-02T04:37:33.765909+00:00 GitLab Importer Import https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/simplesamlphp/saml2/CVE-2018-7644.yml 38.6.0