Cross-site Scripting (XSS) Affecting golang-github-crewjam-saml package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.32% (55th percentile)

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  • Snyk IDSNYK-UBUNTU2204-GOLANGGITHUBCREWJAMSAML-6015646
  • published25 Jun 2025
  • disclosed16 Oct 2023

Introduced: 16 Oct 2023

CVE-2023-45683  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:22.04 golang-github-crewjam-saml.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-github-crewjam-saml package and not the golang-github-crewjam-saml package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

github.com/crewjam/saml is a saml library for the go language. In affected versions the package does not validate the ACS Location URI according to the SAML binding being parsed. If abused, this flaw allows attackers to register malicious Service Providers at the IdP and inject Javascript in the ACS endpoint definition, achieving Cross-Site-Scripting (XSS) in the IdP context during the redirection at the end of a SAML SSO Flow. Consequently, an attacker may perform any authenticated action as the victim once the victim’s browser loaded the SAML IdP initiated SSO link for the malicious service provider. Note: SP registration is commonly an unrestricted operation in IdPs, hence not requiring particular permissions or publicly accessible to ease the IdP interoperability. This issue is fixed in version 0.4.14. Users unable to upgrade may perform external validation of URLs provided in SAML metadata, or restrict the ability for end-users to upload arbitrary metadata.

CVSS Base Scores

version 3.1