GitHub Advisoryadvisory · npm
GHSA-52mq-6jcv-j79x User content sandbox can be confused into opening arbitrary documents
LOW
Official page ↗
- Aliases
- CVE-2021-21320
- Ecosystem
- npm
- Packages
- matrix-react-sdk
- Severity
- Low
- CVSS vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:L/A:N
- Weaknesses
- CWE-345
- Reviewed
- 2021-03-02
Affected packages
• npm matrix-react-sdk: < 3.15.0 → fixed in 3.15.0
Description
Impact
The user content sandbox can be abused to trick users into opening unexpected documents after several user interactions. The content can be opened with a `blob` origin from the Matrix client, so it is possible for a malicious document to access user messages and secrets.
Patches
This has been fixed by https://github.com/matrix-org/matrix-react-sdk/pull/5657, which is included in 3.15.0.
Workarounds
There are no known workarounds.
Related
Alias · CVE (1)
- CVE-2021-21320 matrix-react-sdk is an npm package which is a Matrix SDK for React Javascript. vulnerability
Weakness · CWE (1)
- CWE-345 Insufficient Verification of Data Authenticity weakness
References
- https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-52mq-6jcv-j79x web
- https://nvd.nist.gov/vuln/detail/CVE-2021-21320 advisory
- https://github.com/matrix-org/matrix-react-sdk/pull/5657 web
- https://github.com/matrix-org/matrix-react-sdk/commit/b386f0c73b95ecbb6ea7f8f79c6ff5171a8dedd1 web
- https://www.npmjs.com/package/matrix-react-sdk web