Auth0 Account Link Extension is an extension aimed to help link accounts easily. Versions 2.3.4 to 2.6.6 do not verify the signature of the provided JWT. This allows the user the ability to supply a forged token and the potential to access user information without proper authorization. This issue has been patched in versions 2.6.7, 2.7.0, and 3.0.0. It is recommended to upgrade to version 3.0.0 or greater.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00058.

Exploitation none

Automatable yes

Technical Impact partial

Affected Vendors & Products

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-13289 Auth0 Account Link Extension is an extension aimed to help link accounts easily. Versions 2.3.4 to 2.6.6 do not verify the signature of the provided JWT. This allows the user the ability to supply a forged token and the potential to access user information without proper authorization. This issue has been patched in versions 2.6.7, 2.7.0, and 3.0.0. It is recommended to upgrade to version 3.0.0 or greater.
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/auth0-extensions/auth0-account-link-extension/pull/187 cve-icon cve-icon
https://github.com/auth0-extensions/auth0-account-link-extension/security/advisories/GHSA-j2jh-rqff-7vmg cve-icon cve-icon
History

Fri, 02 May 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 01 May 2025 17:30:00 +0000

Type Values Removed Values Added
Description Auth0 Account Link Extension is an extension aimed to help link accounts easily. Versions 2.3.4 to 2.6.6 do not verify the signature of the provided JWT. This allows the user the ability to supply a forged token and the potential to access user information without proper authorization. This issue has been patched in versions 2.6.7, 2.7.0, and 3.0.0. It is recommended to upgrade to version 3.0.0 or greater.
Title Auth0 Account Link Extension JWT Invalid Signature Validation
Weaknesses CWE-290
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-05-02T17:39:32.800Z

Reserved: 2025-04-22T22:41:54.913Z

Link: CVE-2025-46345

cve-icon Vulnrichment

Updated: 2025-05-02T17:39:29.412Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-05-01T18:15:57.657

Modified: 2025-05-02T13:52:51.693

Link: CVE-2025-46345

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.