{"id":"CVE-2021-32622","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.","aliases":["GHSA-8796-gc9j-63rv","GHSA-cg57-p69r-3m7p"],"modified":"2026-07-09T12:32:52.073939Z","published":"2021-05-17T20:15:07.527Z","references":[{"type":"FIX","url":"https://github.com/matrix-org/matrix-react-sdk/pull/5981"},{"type":"FIX","url":"https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-8796-gc9j-63rv"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/matrix-org/matrix-react-sdk","events":[{"introduced":"0"},{"fixed":"3673292c3495a40df781edd3e7f4c510b39875dc"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:matrix-react-sdk_project:matrix-react-sdk:*:*:*:*:*:node.js:*:*","extracted_events":[{"introduced":"0"},{"fixed":"3.21.0"}]}}],"versions":["v3.21.0-rc.1","v3.0.0","v2.2.2","v2.1.1","v1.7.2","v1.6.1","v0.12.6","v0.12.4","v0.12.6-rc.1","v0.12.5","v0.12.4-rc.6","v0.12.4-rc.5","v0.12.4-rc.4","v0.12.4-rc.3","v0.12.4-rc.2","v0.12.4-rc.1","v0.10.2","v0.9.1","v0.9.0","v0.9.0-rc.2","v0.8.6-rc.2","v0.8.6-rc.1","v0.8.3","v0.8.2","v0.8.0","v0.7.5-rc.1","v0.7.4","v0.7.3","v0.7.2","v0.7.0-rc2","v0.7.0-rc1","v0.6.5","v0.6.4-r1","v0.6.4","v0.6.3","v0.6.2","v0.6.1","v0.6.0","v0.5.2","v0.5.1","v0.5.0","v0.4.0","v0.3.1","v0.3.0","v0.2.0","v0.1.1","v0.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32622.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"}]}