high8.2
CVE-2023-30609
HTML injection in search results via plaintext message highlighting
Impact
### Impact Plain text messages containing HTML tags are rendered as HTML in the search results. To exploit this, an attacker needs to trick a user into searching for a specific message containing an HTML injection payload. Cross-site scripting is possible by including resources from `recaptcha.net` and `gstatic.com` which are included in the default CSP. Thanks to [Cadence Ember](https://cadence.moe/) for finding the injection and to [S1m](https://github.com/p1gp1g/) for finding possible XSS vectors. ### Patches Version 3.71.0 of the SDK fixes the issue. ### Workarounds Restarting the client will clear the injection.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | matrix-react-sdk | < 3.71.0 | 3.71.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Matrix-React-Sdk Project | Matrix-React-Sdk | before 3.71.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/matrix-org/matrix-react-sdk/commit/bf182bc94556849d7acdfa0e5fdea2aa129ea826
- https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.71.0
- https://github.com/matrix-org/matrix-react-sdk/security/advisories/GHSA-xv83-x443-7rmw
- https://github.com/advisories/GHSA-xv83-x443-7rmw
- https://nvd.nist.gov/vuln/detail/CVE-2023-30609