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CVE-2022-39356

8.9 · HIGH

Discourse is a platform for community discussion.

Published Nov 2, 2022CWE-285EPSS 0.62%

Overview

CVE-2022-39356 is a high-severity vulnerability. It was published on November 2, 2022 and has a CVSS 3.1 base score of 8.9 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Discourse is a platform for community discussion. Users who receive an invitation link that is not scoped to a single email address can enter any non-admin user's email and gain access to their account when accepting the invitation. All users should upgrade to the latest version. A workaround is temporarily disabling invitations with `SiteSetting.max_invites_per_day = 0` or scope them to individual email addresses.

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/pull/18817GitHubgithub.com/discourse/discourse/security/advisories/GHSA-x8w7-rwmr-w278GitHubgithub.com/discourse/discourse/pull/18817GitHubgithub.com/discourse/discourse/security/advisories/GHSA-x8w7-rwmr-w278

How CyberStrike helps

Frequently asked questions

What is CVE-2022-39356?

CVE-2022-39356 is a high-severity vulnerability. It was published on November 2, 2022 and has a CVSS 3.1 base score of 8.9 (HIGH).

How severe is CVE-2022-39356?

This vulnerability has a CVSS 3.1 base score of 8.9, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-39356?

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-2022-39356?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-39356 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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