MEDIUM 4.2
GHSA-8796-gc9j-63rv
File upload local preview can run embedded scripts after user interaction
상세
### Impact
When uploading a file, the local file preview can lead to execution of scripts embedded in the uploaded file, but only 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.
### Patches
This has been fixed by https://github.com/matrix-org/matrix-react-sdk/pull/5981, which is included in 3.21.0.
### Workarounds
There are no known workarounds.
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