CVE-2021-32622

    Dashboard / Vulnerabilities / CVE-2021-32622

    CVE-2021-32622

    Published: 17 May 2021Last Modified: 9 Jul 2026

    Summary:

    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.

    References: https://github.com/matrix-org/matrix-react-sdk/pull/5981, https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -3673292c3495a40df781edd3e7f4c510b39875dc

    Affected versions

    v3.21.0-rc.1

    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
    CVE-2021-32622 | CVE-DB