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CVE-2023-30609— matrix-react-sdk vulnerable to HTML injection in search results via plaintext message highlighting

Quick assessment

Affected
matrix-org matrix-react-sdk
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
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 3.71.0之前版本存在注入漏洞，该漏洞源于包含HTML标记的纯文本消息在搜索结果中会呈现为HTML。

CVSS 5.4 · Medium EPSS 0.62% · P48

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise
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I. Basic Information for CVE-2023-30609

Vulnerability Information
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Vulnerability Title
matrix-react-sdk vulnerable to HTML injection in search results via plaintext message highlighting
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. Prior to version 3.71.0, plain text messages containing HTML tags are rendered as HTML in the search results. To exploit this, an attacker needs to trick a user into searching for a specific message containing an HTML injection payload. No cross-site scripting attack is possible due to the hardcoded content security policy. Version 3.71.0 of the SDK patches over the issue. As a workaround, restarting the client will clear the HTML injection.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: CVE Program / CVE List V5
Vulnerability Title
matrix-react-sdk 注入漏洞
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 3.71.0之前版本存在注入漏洞，该漏洞源于包含HTML标记的纯文本消息在搜索结果中会呈现为HTML。
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 < 3.71.0 -

II. Public POCs for CVE-2023-30609

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III. Intelligence Information for CVE-2023-30609

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Patches & Fixes for CVE-2023-30609 (1)

Vendor Advisories for CVE-2023-30609 (1)

Other References for CVE-2023-30609 (1)

IV. Related Vulnerabilities

Same product: matrix-react-sdk
Same vendor: matrix-org
Same weakness: CWE-74

V. Comments for CVE-2023-30609

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