Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2024-42347— URL preview setting for a room is controllable by the homeserver in matrix-react-sdk

Quick assessment

Affected
matrix-org matrix-react-sdk
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

matrix-react-sdk是Matrix开源的一个用于将Matrix chat/voip客户端插入网页的组件。 matrix-react-sdk 3.105.1之前版本存在安全漏洞，该漏洞源于恶意主服务器可以操纵用户的帐户数据，使客户端在端到端加密房间中启用URL预览。

CVSS 7.7 · High EPSS 0.43% · P35
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2024-42347

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
URL preview setting for a room is controllable by the homeserver in matrix-react-sdk
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
侵犯隐私
Source: CVE Program / CVE List V5
Vulnerability Title
matrix-react-sdk 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
matrix-react-sdk是Matrix开源的一个用于将Matrix chat/voip客户端插入网页的组件。 matrix-react-sdk 3.105.1之前版本存在安全漏洞，该漏洞源于恶意主服务器可以操纵用户的帐户数据，使客户端在端到端加密房间中启用URL预览。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
matrix-org matrix-react-sdk < 3.105.1 -

II. Public POCs for CVE-2024-42347

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8293 chars
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2024-42347

请登录查看更多情报信息。

IV. Related Vulnerabilities

Same product: matrix-react-sdk
Same vendor: matrix-org
Same weakness: CWE-359

V. Comments for CVE-2024-42347

No comments yet

Leave a comment