Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2023-45683

17
FAUCET Score

CVE-2023-45683 is a Cross-Site Scripting (XSS) vulnerability affecting the github.com/crewjam/saml Go library, specifically versions prior to 0.4.14. The flaw stems from the library's failure to properly validate the ACS Location URI according to the SAML binding, allowing attackers to register malicious Service Providers (SPs) at an Identity Provider (IdP) and inject JavaScript. This medium-severity vulnerability (CVSS 6.1) has a network attack vector and low attack complexity, requiring user interaction. Successful exploitation could lead to XSS in the IdP context, enabling an attacker to perform authenticated actions as the victim. Currently, there is no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) or significant community discussion has been observed. Users are advised to upgrade to version 0.4.14 or implement external URL validation for SAML metadata.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.4.14CPE matchmatch criteria
cpe:2.3:a:saml_project:saml:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
3.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.43%
Probability of exploitation in next 30 days
EPSS Percentile
35.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0043 is in the 37th percentile among its peer group of 26,221 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/crewjam/samlFixed in: 0.4.14

Vendor Advisories (2)

goGHSA-267v-3v32-g6q5high

Cross-site Scripting via missing Binding syntax validation

Oct 17, 2023
redhatCVE-2023-45683Moderate

github.com/crewjam/saml: Cross-Site-Scripting (XSS) in github.com/crewjam/saml

Oct 16, 2023

References

github.com / crewjam/saml/commit/b07b16cf83c4171d16da4d85608cb827f183cd79
Patch
github.com / crewjam/saml/security/advisories/GHSA-267v-3v32-g6q5
Vendor Advisory