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CVE-2025-46345— Auth0 Account Link Extension JWT Invalid Signature Validation

AI Predicted 9.8 Difficulty: Trivial EPSS 0.36% · P29

Possible ATT&CK Techniques 1AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-46345

Vulnerability Information
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Vulnerability Title
Auth0 Account Link Extension JWT Invalid Signature Validation
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Auth0 Account Link Extension 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Auth0 Account Link Extension是Auth0 Extensions开源的一个旨在帮助轻松链接帐户的扩展。 Auth0 Account Link Extension 2.3.4版本至2.6.6版本存在安全漏洞，该漏洞源于JWT签名未验证，可能导致未授权访问用户信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
auth0-extensionsauth0-account-link-extension >= 2.3.4, < 2.6.7 -

II. Public POCs for CVE-2025-46345

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III. Intelligence Information for CVE-2025-46345

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Patches & Fixes for CVE-2025-46345 (1)

Vendor Advisories for CVE-2025-46345 (1)

IV. Related Vulnerabilities

Same weakness: CWE-290

V. Comments for CVE-2025-46345

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