CVE-2024-42347CWE-359

URL preview setting for a room is controllable by the homeserver in matrix-react-sdk

High · published August 6, 2024

CVSS v3.1
7.7
EPSS
0%
Percentile
36.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00427 · 36.0th percentile
Weakness
CWE-359 · Exposure of Private Personal Information to an Unauthorized Actor
Published
2024-08-06T17:16Z
EPSS history
Timeline
  • 06 AUG 17:16Z
    URL preview setting for a room is controllable by the homeserver in matrix-react-sdk
    cvelistv5