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

5.4MEDIUM

Key Information:

Vendor

Matrix-org

Status
Matrix-react-sdk
Vendor
CVE Published:
25 April 2023

What is CVE-2023-30609?

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.

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Affected Version(s)

matrix-react-sdk < 3.71.0

References

https://github.com/matrix-org/matrix-react-sdk/security/a...
x_refsource_CONFIRM
https://github.com/matrix-org/matrix-react-sdk/commit/bf1...
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https://github.com/matrix-org/matrix-react-sdk/releases/t...
x_refsource_MISC

CVSS V3.1

Score:
5.4
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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