Auth0 Passport-SharePoint does not validate JWT signature

HIGH 7.3CVE-2019-13483 · GHSA-45fh-g845-pj9w · Published 25/07/2019 · updated 17/06/2026

In short

CVE-2019-13483 is a HIGH (CVSS 7.3) vulnerability affecting passport-sharepoint (auth0), passport-sharepoint.
Chance of exploitation in the next 30 days (EPSS): 0.56%, higher than 46.6% of all vulnerabilities.
Fix: update to 0.4.0 or later.

Package	Affected versions	Patched versions
passport-sharepoint auth0	`< 0.4.0`	`0.4.0`
passport-sharepoint npm	`< 0.4.0`	`0.4.0`

Description

Auth0 Passport-SharePoint before 0.4.0 does not validate the JWT signature of an Access Token before processing. This allows attackers to forge tokens and bypass authentication and authorization mechanisms.

NVD description

References

nvd.nist.gov/vuln/detail/CVE-2019-13483 · ADVISORY
auth0.com/docs/security/bulletins/cve-2019-13483 · WEB
auth0/passport-sharepoint · PACKAGE

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