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CVE-2021-41082

7.5 · HIGH

Discourse is a platform for community discussion.

Published Sep 20, 2021CWE-200EPSS 1.79%

Overview

CVE-2021-41082 is a high-severity vulnerability. It was published on September 20, 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

Discourse is a platform for community discussion. In affected versions any private message that includes a group had its title and participating user exposed to users that do not have access to the private messages. However, access control for the private messages was not compromised as users were not able to view the posts in the leaked private message despite seeing it in their inbox. The problematic commit was reverted around 32 minutes after it was made. Users are encouraged to upgrade to the latest commit if they are running Discourse against the `tests-passed` branch.

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/27bad28c530c89acab35a56b945b6a3924280f4bGitHubgithub.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2cGitHubgithub.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vvGitHubgithub.com/discourse/discourse/commit/27bad28c530c89acab35a56b945b6a3924280f4bGitHubgithub.com/discourse/discourse/commit/ddb458343dc39a7a8c99467dcd809b444514fe2cGitHubgithub.com/discourse/discourse/security/advisories/GHSA-vm3x-w6jm-j9vv

How CyberStrike helps

Frequently asked questions

What is CVE-2021-41082?

CVE-2021-41082 is a high-severity vulnerability. It was published on September 20, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-41082?

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-2021-41082?

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-2021-41082?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-41082 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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