matrix-react-sdk is an npm package which is a Matrix SDK for React Javascript. In matrix-react-sdk before version 3.15.0, the user content sandbox can be abused to trick users into opening unexpected documents. The content is opened with a `blob` origin that cannot access Matrix user data, so messages and secrets are not at risk. This has been fixed in version 3.15.0.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| matrix-react-sdk(npm) | 0 | 3.15.0 | N/A |
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