CVE-2023-37259

matrix-react-sdk is a react-based SDK for inserting a Matrix chat/voip client into a web page. The Export Chat feature includes certain attacker-controlled elements in the generated document without sufficient escaping, leading to stored Cross site scripting (XSS). Since the Export Chat feature generates a separate document, an attacker can only inject code run from the `null` origin, restricting the impact. However, the attacker can still potentially use the XSS to leak message contents. A malicious homeserver is a potential attacker since the affected inputs are controllable server-side. This issue has been addressed in commit `22fcd34c60` which is included in release version 3.76.0. Users are advised to upgrade. The only known workaround for this issue is to disable or to not use the Export Chat feature.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/matrix-org/matrix-react-sdk/commit/22fcd34c606f32129ebc967fc21f24fb708a98b8	Patch
https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-c9vx-2g7w-rp65	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:matrix-react-sdk_project:matrix-react-sdk::::::node.js::*
	cpe:2.3:a:matrix-react-sdk_project:matrix-react-sdk:3.76.0:rc1::::node.js::*
	cpe:2.3:a:matrix-react-sdk_project:matrix-react-sdk:3.76.0:rc2::::node.js::*

History

No history.

Information

Published : 2023-07-18 17:15

Updated : 2023-07-27 19:50

NVD link : CVE-2023-37259

Mitre link : CVE-2023-37259

CVE.ORG link : CVE-2023-37259

JSON object : View

Products Affected

matrix-react-sdk_project

matrix-react-sdk

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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