CVE-2021-32622: medium-severity vulnerability in matrix-org matrix-react-sdk
File upload local preview can run embedded scripts after user interaction
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 4.2epss 0.4%
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.
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:L
Affected products
matrix-org · matrix-react-sdkRelated CVEs — matrix-org matrix-react-sdk
In the same product, most dangerous first.
CVE-2021-21320LOWUser content sandbox can be confused into opening arbitrary documentsEPSS 0.9%CVE-2022-36060HIGHPrototype pollution in matrix-react-sdkEPSS 0.9%CVE-2023-28103HIGHPrototype pollution in matrix-react-sdkEPSS 0.7%CVE-2024-47824HIGHMalicious homeservers can steal message keys when the matrix-react-sdk user invites another user to a roomEPSS 0.7%CVE-2023-30609MEDIUMmatrix-react-sdk vulnerable to HTML injection in search results via plaintext message highlightingEPSS 0.6%CVE-2023-37259MEDIUMCross site scripting in Export Chat featureEPSS 0.5%