GHSA-59hf-mpf8-pqjh
Suggest an improvement- Source
- https://github.com/advisories/GHSA-59hf-mpf8-pqjh
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/09/GHSA-59hf-mpf8-pqjh/GHSA-59hf-mpf8-pqjh.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-59hf-mpf8-pqjh
- Aliases
- Published
- 2024-09-26T09:31:42Z
- Modified
- 2024-10-10T15:57:39.409487Z
- Severity
-
- 5.4 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
- 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
- Summary
- Mattermost fails to strip `embeds` from `metadata` when broadcasting `posted` events
- Details
-
Mattermost does not strip
embedsfrommetadatawhen broadcastingpostedevents.This allows users to include arbitrary embeds in posts, which are then broadcasted via websockets. This can be exploited in many ways, for example to create permalinks with fully customizable content or to trigger a client Side Denial of Service (DoS) by sending a permalink with a non-string message.
The advisory metadata references the appropriate go pseudo version available from pkg.go.dev
- References
-
- https://nvd.nist.gov/vuln/detail/CVE-2024-47003
- https://github.com/mattermost/mattermost/pull/27763
- https://github.com/mattermost/mattermost/commit/69a8b3df0f9fd3a7a5b792ec678b6191618d039b
- https://github.com/c0rydoras/cves/tree/main/CVE-2024-47003
- https://github.com/mattermost/mattermost
- https://mattermost.com/security-updates
Affected packages
Go / github.com/mattermost/mattermost/server/v8
Package
- Name
- github.com/mattermost/mattermost/server/v8
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/mattermost/mattermost/server/v8