CVE-2024-52806: SimpleSAMLphp SAML2 has an XXE in parsing SAML messages

8.3 CVSS

Description

SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 4.6.14 and 5.0.0-alpha.18.

Classification

CVE ID: CVE-2024-52806

CVSS Base Severity: HIGH

CVSS Base Score: 8.3

Affected Products

Vendor: simplesamlphp

Product: saml2

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.04% (probability of being exploited)

EPSS Percentile: 11.44% (scored less or equal to compared to others)

EPSS Date: 2025-02-03 (when was this score calculated)

References

https://github.com/simplesamlphp/saml2/security/advisories/GHSA-pxm4-r5ph-q2m2
https://github.com/simplesamlphp/saml2/commit/5fd4ce4596656fb0c1278f15b8305825412e89f7

Timeline