Firebase JavaScript SDK allows attackers to manipulate the "_authTokenSyncURL" to point to their own server

Description

Firebase JavaScript SDK utilizes a “FIREBASE_DEFAULTS” cookie to store configuration data, including an “_authTokenSyncURL” field used for session synchronization.

Recommendation

Update the firebase package to the latest compatible version. Followings are version details:

• Affected version(s): < 10.9.0
• Patched version(s): 10.9.0

References

• GHSA-3wf4-68gx-mph8
• firebase.google.com
• CVE-2024-11023
• CWE-79
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Microsoft Playwright MCP Server vulnerable to DNS Rebinding Attack; Allows Attackers Access to All Server Tools - CVE-2025-9611
• AngularJS allows attackers to bypass common image source restrictions - angular - CVE-2024-8373
• AngularJS allows attackers to bypass common image source restrictions - CVE-2024-8372
• Strapi allows Server-Side Request Forgery in Webhook function - CVE-2024-52588

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Exploiting Server Version Disclosure

Tags:

npm

firebase