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CVE-2024-42347

7.7 · HIGH

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page.

Published Aug 6, 2024CWE-359EPSS 0.43%

Overview

CVE-2024-42347 is a high-severity vulnerability. It was published on August 6, 2024 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. A malicious homeserver could manipulate a user's account data to cause the client to enable URL previews in end-to-end encrypted rooms, in which case any URLs in encrypted messages would be sent to the server. This was patched in matrix-react-sdk 3.105.0. Deployments that trust their homeservers, as well as closed federations of trusted servers, are not affected. Users are advised to upgrade. There are no known workarounds for this vulnerability.

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/matrix-org/matrix-react-sdk/releases/tag/v3.105.1GitHubgithub.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-f83w-wqhc-cfp4

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42347?

CVE-2024-42347 is a high-severity vulnerability. It was published on August 6, 2024 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2024-42347?

This vulnerability has a CVSS 3.1 base score of 7.7, 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-2024-42347?

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-2024-42347?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42347 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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