Information disclosure in Parse Server - #VU56933

Detailed vulnerability description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to LiveQuery includes users' session token into payloads. If a user has a LiveQuery subscription on the Parse.User class, all session tokens created during user sign-ups will be broadcast as part of the LiveQuery payload. A remote attacker can obtain the session token from the broadcasted payload and reuse it to bypass authentication.

Remediation

Sources

• https://github.com/parse-community/parse-server/releases/tag/4.10.4
• https://github.com/parse-community/parse-server/security/advisories/GHSA-7pr3-p5fm-8r9x