CVSS 3.1
4.7 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:NCVE-2023-30609
Medium (4.7) in matrix-react-sdk project matrix-react-sdk. EPSS 0.6% chance of exploitation in the next 30 days. Fixed in matrix-react-sdk 3.71.0.
matrix-react-sdk is a react-based SDK for inserting a Matrix chat/VoIP client into a web page. Prior to version 3.71.0, 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. No cross-site scripting attack is possible due to the hardcoded content security policy. Version 3.71.0 of the SDK patches over the issue. As a workaround, restarting the client will clear the HTML injection.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 49% of CVEs (scores of 2026-11-01)
- CWE
- CWE-74
- Published
- Modified
- Record from
- the NVD, synced
Affected
- matrix-react-sdk_project:matrix-react-sdk
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-xv83-x443-7rmw | npm | matrix-react-sdk | <3.71.0 | 3.71.0 |
References
- 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/matrix-org/matrix-react-sdk/commit/bf182bc94556849d7acdfa0e5fdea2aa129ea826
- https://github.com/matrix-org/matrix-react-sdk/releases/tag/v3.71.0