CVE-2018-7307: Auth0-js bypasses CSRF checks
Summary
CVE-2018-7307: Auth0-js bypasses CSRF checks. Affects auth0-js versions < 9.3.0. Fixed in 9.3.0. How to fix ↓
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Background
Auth0-js is an npm package that provides authentication and authorization services for web applications. It is widely used to implement user authentication and authorization in JavaScript-based applications. The package allows developers to integrate their applications with Auth0, a popular identity management platform. However, versions below 9.3 of Auth0-js are vulnerable to a CSRF (Cross-Site Request Forgery) bypass. This vulnerability can be exploited by an attacker to bypass the CSRF check from the state parameter if it's missing from the authorization response. As a result, the client becomes vulnerable to CSRF attacks, which can lead to unauthorized access, data leakage, and other security breaches.
Vulnerability Detail
The vulnerability in Auth0-js versions below 9.3 allows an attacker to bypass the CSRF check from the state parameter. This check is an important security measure to prevent CSRF attacks, which involve tricking a user into performing unintended actions on a web application. By bypassing this check, an attacker can forge requests on behalf of the user, potentially leading to unauthorized actions, data theft, or other malicious activities. The vulnerability originates from a missing state parameter in the authorization response, which should be validated to ensure the authenticity of the request. The impact of this vulnerability is significant, as it exposes applications using vulnerable versions of Auth0-js to potential CSRF attacks.
How To Fix
Latest published version: 10.3.0 as of 22 Oct 2026
npm install auth0-js@10.3.0Upgrading to it may include breaking changes; the version below is the minimum fixed release for this vulnerability.
If you need the minimum change
9.3.0
This is the first release that contains the fix.
npm install auth0-js@9.3.0Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
There is no specific workaround mentioned for this vulnerability. The recommended approach is to upgrade to the latest secure version of Auth0-js.
Conclusion
The vulnerability in Auth0-js versions below 9.3 allows an attacker to bypass CSRF checks, potentially leading to unauthorized actions and data breaches. To mitigate this vulnerability, it is crucial to upgrade to Auth0-js version 9.3.0 or above. Developers should follow the recommended steps provided by Auth0 and thoroughly test the application after the upgrade. For further support and assistance in vulnerability remediation, you can reach out to DevNack.com.
See every vulnerability recorded for auth0-js →
FAQ
CSRF (Cross-Site Request Forgery) is an attack that tricks the victim into submitting a malicious request. It occurs when a malicious website or application forces a user's browser to perform unwanted actions on a trusted website where the user is authenticated.
CSRF attacks can lead to unauthorized actions, data leakage, account hijacking, and other security breaches. Attackers can perform actions on behalf of the victim, such as changing passwords, making unauthorized purchases, or accessing sensitive information.
You can use Vulert's playground (https://vulert.com/scanner) to check if your application is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities, using just the package-lock.json file.
There are no known public exploits for this vulnerability at the time of writing. However, it is important to promptly upgrade to the latest secure version to mitigate the risk.
You can find more information about this vulnerability, including its fix, in the GitHub advisory database (https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2018/03/GHSA-wpq7-q8j4-72jg/GHSA-wpq7-q8j4-72jg.json). It is recommended to follow the official documentation and release notes provided by Auth0 for a comprehensive understanding of the vulnerability and its resolution.
References
Related vulnerabilities
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