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2 vulnerabilities by tngan
CVE-2026-46490 (GCVE-0-2026-46490)
Vulnerability from cvelistv5 – Published: 2026-06-08 18:41 – Updated: 2026-06-09 15:13
VLAI
Title
samlify: XML Injection in AttributeValue Allows Privilege Escalation in Signed SAML Assertions
Summary
samlify is a Node.js library for SAML single sign-on. Prior to version 2.13.0, samlify’s template substitution only escapes attribute contexts. Values inserted into element text (e.g., <saml:AttributeValue>) are not escaped. A normal user can inject XML markup into an attribute value (e.g., email, name) and add new <saml:Attribute> elements inside the signed assertion. The IdP then signs the tampered assertion and the SP accepts the injected attributes as trusted. This allows privilege escalation when attributes are used for authorization (roles/groups). This issue has been patched in version 2.13.0.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-91 - XML Injection (aka Blind XPath Injection)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/tngan/samlify/security/advisor… | x_refsource_CONFIRM |
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CVE-2025-47949 (GCVE-0-2025-47949)
Vulnerability from cvelistv5 – Published: 2025-05-19 19:28 – Updated: 2025-05-20 13:00
VLAI
Title
samlify SAML Signature Wrapping attack
Summary
samlify is a Node.js library for SAML single sign-on. A Signature Wrapping attack has been found in samlify prior to version 2.10.0, allowing an attacker to forge a SAML Response to authenticate as any user. An attacker would need a signed XML document by the identity provider. Version 2.10.0 fixes the issue.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/tngan/samlify/security/advisor… | x_refsource_CONFIRM |
| https://github.com/tngan/samlify/commit/115679acd… | x_refsource_MISC |
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