In short
- CVE-2021-41109 is a HIGH (CVSS 7.5) vulnerability affecting parse-server (parseplatform), parse-server.
- Chance of exploitation in the next 30 days (EPSS): 1.2%, higher than 69.3% of all vulnerabilities.
- Fix: update to 4.10.4 or later.
Description
Impact
For regular (non-LiveQuery) queries, the session token is removed from the response, but for LiveQuery payloads it is currently not. 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.
Patches
Remove session token from LiveQuery payload.
Workaround
Set user.acl(new Parse.ACL()) in a beforeSave trigger to make the user private already on sign-up.
NVD description
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to version 4.10.4, for regular (non-LiveQuery) queries, the session token is removed from the response, but for LiveQuery payloads it is currently not. 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 patch in version 4.10.4 removes session tokens from the LiveQuery payload. As a workaround, set `user.acl(new Parse.ACL())` in a beforeSave trigger to make the user private already on sign-up.
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