GO-2026-4459
Mattermost Server vulnerable to XSS through channel headers in github.com/mattermost/mattermost-server
Quick fix
GO-2026-4459 — github.com/mattermost/mattermost-server: upgrade to the fixed version with the command below.
go get github.com/mattermost/mattermost-server@v3.10.2+incompatibleDetails
Mattermost Server vulnerable to XSS through channel headers in github.com/mattermost/mattermost-server.
NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions.
(If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.)
The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.9.2-0.20170714014920-312269ad0bd1.
Are you affected?
Enter the version of the package you're using.
Affected packages
3.10.0+incompatibleFixed in: 3.10.2+incompatiblego get github.com/mattermost/mattermost-server@v3.10.2+incompatibleReferences
- https://github.com/advisories/GHSA-42x9-rr3c-gr59[ADVISORY]
- https://nvd.nist.gov/vuln/detail/CVE-2017-18907[ADVISORY]
- https://github.com/mattermost/mattermost/commit/312269ad0bd166174f07f9df7391fce714601600[WEB]
- https://github.com/mattermost/mattermost/commit/4519b03d95e8bfe1b2f74094673ae1a2f39f6b47[WEB]
- https://github.com/mattermost/mattermost/commit/a18479df0940be8503c9b88993490741793eba9e[WEB]
- https://mattermost.com/security-updates[WEB]