CVE-2024-52806: high-severity vulnerability in simplesamlphp saml2
SimpleSAMLphp SAML2 has an XXE in parsing SAML messages
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.3epss 0.4%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Affected products
simplesamlphp · saml2Related CVEs — simplesamlphp saml2
In the same product, most dangerous first.
CVE-2026-49289HIGHSimpleSAMLphp SAML2: Possible DoS via XPath TransformEPSS 0.8%CVE-2026-49283HIGHSimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypassEPSS 0.5%CVE-2025-27773HIGHSimpleSAMLphp SAML2 library has incorrect signature verification for HTTP-Redirect bindingEPSS 0.4%