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CVE-2022-41938

9.0 · CRITICAL

Flarum is an open source discussion platform.

Published Nov 19, 2022CWE-79EPSS 0.74%

Overview

CVE-2022-41938 is a critical-severity vulnerability. It was published on November 19, 2022 and has a CVSS 3.1 base score of 9.0 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Flarum is an open source discussion platform. Flarum's page title system allowed for page titles to be converted into HTML DOM nodes when pages were rendered. The change was made after `v1.5` and was not noticed. This allowed an attacker to inject malicious HTML markup using a discussion title input, either by creating a new discussion or renaming one. The XSS attack occurs after a visitor opens the relevant discussion page. All communities running Flarum from `v1.5.0` to `v1.6.1` are impacted. The vulnerability has been fixed and published as flarum/core `v1.6.2`. All communities running Flarum from `v1.5.0` to `v1.6.1` have to upgrade as soon as possible to v1.6.2. There are no known workarounds for this issue.

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

Refdiscuss.flarum.org/d/27558GitHubgithub.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138GitHubgithub.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854xRefdiscuss.flarum.org/d/27558GitHubgithub.com/flarum/framework/commit/690de9ce0ffe7ac4d45b73e303f44340c3433138GitHubgithub.com/flarum/framework/security/advisories/GHSA-7x4w-j98p-854x

How CyberStrike helps

Frequently asked questions

What is CVE-2022-41938?

CVE-2022-41938 is a critical-severity vulnerability. It was published on November 19, 2022 and has a CVSS 3.1 base score of 9.0 (CRITICAL).

How severe is CVE-2022-41938?

This vulnerability has a CVSS 3.1 base score of 9.0, rated CRITICAL. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-41938?

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-2022-41938?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-41938 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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