CVE-2024-42347: matrix-org matrix-react-sdk

Vulnerability summary

CVE-2024-42347 is a high (CVSS 7.7) vulnerability in matrix-org matrix-react-sdk. EPSS estimates a 0.43% chance of exploitation in the next 30 days, higher than 35.6% of scored vulnerabilities.

Timeline

1. 06-08-2024
   PublishedVulnerability first disclosed.
2. 08-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-359Exposure of Private Personal Information to an Unauthorized ActorThe product does not properly prevent a person's private, personal information from being accessed by actors who either (1) are not explicitly authorized to access the information or (2) do not have the implicit consent of the person about whom the information is collected.