Buttercup allows attackers to obtain the hash of the master password

Description

Buttercup allows attackers to obtain the hash of the master password for the password manager via accessing the file /vaults.json/.

This affects the Buttercup app up to version 2.20.3.

Recommendation

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

• Affected version(s): >= 2.20.3, < 7.4.0
• Patched version(s): 7.4.0

References

• GHSA-7cwq-p8cr-h9qg
• buttercup.pw
• CVE-2023-41646
• CWE-916
• CAPEC-310
• OWASP 2021-A2
• OWASP 2021-A6

Related Issues

• Feathers socket handler allows abusing implicit toString (GHSA-hhr9-rh25-hvf9) - CVE-2023-37899
• html inputs of type password recorded in plaintext when converted to text inputs - CVE-2023-33187
• Strapi may leak sensitive user information, user reset password, tokens via content-manager views (GHSA-v8gg-4mq2-88q4) 2 - CVE-2023-36472
• Microsoft Playwright MCP Server vulnerable to DNS Rebinding Attack; Allows Attackers Access to All Server Tools - CVE-2025-9611

Tags:

npm

buttercup