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CVE-2021-41109

7.5 · HIGH

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js.

Published Sep 30, 2021CWE-200EPSS 1.25%

Overview

CVE-2021-41109 is a high-severity vulnerability. It was published on September 30, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/parse-community/parse-server/commit/4ac4b7f71002ed4fbedbb901db1f6ed1e9ac5559GitHubgithub.com/parse-community/parse-server/releases/tag/4.10.4GitHubgithub.com/parse-community/parse-server/security/advisories/GHSA-7pr3-p5fm-8r9xGitHubgithub.com/parse-community/parse-server/commit/4ac4b7f71002ed4fbedbb901db1f6ed1e9ac5559GitHubgithub.com/parse-community/parse-server/releases/tag/4.10.4GitHubgithub.com/parse-community/parse-server/security/advisories/GHSA-7pr3-p5fm-8r9x

How CyberStrike helps

Frequently asked questions

What is CVE-2021-41109?

CVE-2021-41109 is a high-severity vulnerability. It was published on September 30, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-41109?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-41109?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-41109?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-41109 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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