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CVE-2021-32788

4.3 · MEDIUM

Discourse is an open source discussion platform.

Published Jul 27, 2021CWE-668EPSS 0.89%

Overview

CVE-2021-32788 is a medium-severity vulnerability. It was published on July 27, 2021 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Discourse is an open source discussion platform. In versions prior to 2.7.7 there are two bugs which led to the post creator of a whisper post being revealed to non-staff users. 1: Staff users that creates a whisper post in a personal message is revealed to non-staff participants of the personal message even though the whisper post cannot be seen by them. 2: When a whisper post is before the last post in a post stream, deleting the last post will result in the creator of the whisper post to be revealed to non-staff users as the last poster of the topic.

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/discourse/discourse/commit/680024f9071b7696e5a444a58791016c6dc1f1e5GitHubgithub.com/discourse/discourse/commit/dbdf61196d9e964e8823793d2e7f856595fea4d9GitHubgithub.com/discourse/discourse/security/advisories/GHSA-v6xg-q577-vc92GitHubgithub.com/discourse/discourse/commit/680024f9071b7696e5a444a58791016c6dc1f1e5GitHubgithub.com/discourse/discourse/commit/dbdf61196d9e964e8823793d2e7f856595fea4d9GitHubgithub.com/discourse/discourse/security/advisories/GHSA-v6xg-q577-vc92

How CyberStrike helps

Frequently asked questions

What is CVE-2021-32788?

CVE-2021-32788 is a medium-severity vulnerability. It was published on July 27, 2021 and has a CVSS 3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2021-32788?

This vulnerability has a CVSS 3.1 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-32788?

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-2021-32788?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-32788 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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