| id: GO-2026-4296 |
| modules: |
| - module: github.com/mattermost/mattermost-server |
| versions: |
| - fixed: 4.0.5+incompatible |
| - introduced: 4.1.0+incompatible |
| - fixed: 4.1.1+incompatible |
| - introduced: 4.2.0-rc1+incompatible |
| - fixed: 4.2.0+incompatible |
| vulnerable_at: 4.2.0-rc4+incompatible |
| summary: Mattermost Server is vulnerable to XSS through display name field in github.com/mattermost/mattermost-server |
| cves: |
| - CVE-2017-18893 |
| ghsas: |
| - GHSA-887v-xh2x-47cm |
| references: |
| - advisory: https://github.com/advisories/GHSA-887v-xh2x-47cm |
| - advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-18893 |
| - web: https://github.com/mattermost/mattermost/commit/2a4d88d07c5815deac103e109550d25338507151 |
| - web: https://github.com/mattermost/mattermost/commit/670bfbf62686ebe9f2ab332733d851a62b6950b0 |
| - web: https://github.com/mattermost/mattermost/commit/d0b42b9e527e93a61fd06a9b9106fc97067807e4 |
| - web: https://mattermost.com/security-updates |
| source: |
| id: GHSA-887v-xh2x-47cm |
| created: 2026-01-13T10:45:06.062139968-05:00 |
| review_status: UNREVIEWED |
