GHSA-cg57-p69r-3m7p

    Dashboard / Vulnerabilities / GHSA-cg57-p69r-3m7p

    GHSA-cg57-p69r-3m7p

    Published: 10 Feb 2022Last Modified: 8 Jul 2026

    Summary: Improper file handling in matrix-react-sdk

    Details: Matrix-React-SDK is a react-based SDK for inserting a Matrix chat/voip client into a web page. Before version 3.21.0, when uploading a file, the local file preview can lead to execution of scripts embedded in the uploaded file. This can only occur after several user interactions to open the preview in a separate tab. This only impacts the local user while in the process of uploading. It cannot be exploited remotely or by other users. This vulnerability is patched in version 3.21.0.

    Affected packages

    Package

    Name: matrix-react-sdk

    Purl: pkg:npm/matrix-react-sdk

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 0
    Fixed -3.21.0

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    GHSA-cg57-p69r-3m7p | CVE-DB