Authentication Bypass for passport-wsfed-saml2
Overview
A remote attacker can bypass WSFed authentication on a website using passport-wsfed-saml2. A successful attack requires that the attacker is in possession of an arbitrary IDP signed WSFed assertion. Depending on the IDP used, fully unauthenticated attacks (e.g without access to a valid user) might also be feasible if generation of a signed message can be triggered.
Am I affected?
You are affected if you are using WSFed protocol with the passport-wsfed-saml2 library versions < 4.6.3. SAML2 protocol is not affected.
How do I fix it?
Upgrade the library to version 4.6.3.
Will the fix impact my users?
No, the fix will not impact your users.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | passport-wsfed-saml2 | < 4.6.3 | 4.6.3 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- Weakness (CWE)
CWE-287- Platform
- npm
- Package
passport-wsfed-saml2- Disclosed
- 13.12.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-ppjq-qxhx-m25f - CC BY 4.0
Vulnerability history: passport-wsfed-saml2
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 12.2022 05.2025
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 3
- Medium 1
Disclosures per year
- 2022: 1
- 2023: 2
- 2024: 0
- 2025: 2
- 2026: 0
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Authentication Bypass for passport-wsfed-saml2 this entry
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