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

Quick assessment

Affected
simplesamlphp saml2
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

SimpleSAMLphp是一款实现了SAML 2.0服务提供者和标识提供者功能的PHP身份验证应用程序。 SimpleSAMLphp存在安全漏洞，该漏洞源于加载不受信任的XML文档时，会诱导XML外部实体注入。

CVSS 8.3 · High EPSS 0.43% · P36

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2024-52806

Vulnerability Information
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Vulnerability Title
SimpleSAMLphp SAML2 has an XXE in parsing SAML messages
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
XML外部实体引用的不恰当限制(XXE)
Source: CVE Program / CVE List V5
Vulnerability Title
SimpleSAMLphp 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SimpleSAMLphp是一款实现了SAML 2.0服务提供者和标识提供者功能的PHP身份验证应用程序。 SimpleSAMLphp存在安全漏洞，该漏洞源于加载不受信任的XML文档时，会诱导XML外部实体注入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
simplesamlphp saml2 < 4.6.14 -

II. Public POCs for CVE-2024-52806

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 7541 chars
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III. Intelligence Information for CVE-2024-52806

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Patches & Fixes for CVE-2024-52806 (1)

Vendor Advisories for CVE-2024-52806 (1)

IV. Related Vulnerabilities

Same product: saml2
Same vendor: simplesamlphp
Same weakness: CWE-611

V. Comments for CVE-2024-52806

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