Information disclosure in Parse-Community Parse-Server
CVE-2021-41109
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.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (68.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 68.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Parse-Community Parse-Server — versions < 4.10.4
- Parseplatform Parse-Server
Weakness classification (CWE)
References
- github.com/parse-community/parse-server/security/advisories/GHSA-7pr3-p5fm-8r9x (Third Party Advisory, Mitigation)
- github.com/parse-community/parse-server/commit/4ac4b7f71002ed4fbedbb901db1f6ed1… (Patch, Third Party Advisory)
- github.com/parse-community/parse-server/releases/tag/4.10.4 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2021-41109?
- CVE-2021-41109 is a high-severity vulnerability in Parse-Community Parse-Server, classified under Information Disclosure. CVSS score: 7.5/10. Published 2021-09-30.
- How severe is CVE-2021-41109?
- High severity. CVSS v3 base score is 7.5 out of 10.