| id: GO-2025-4189 |
| modules: |
| - module: github.com/mattermost/mattermost-server |
| versions: |
| - fixed: 4.1.2+incompatible |
| - introduced: 4.2.0+incompatible |
| - fixed: 4.2.1+incompatible |
| - introduced: 4.3.0-rc1+incompatible |
| - fixed: 4.3.0+incompatible |
| vulnerable_at: 4.3.0-rc4+incompatible |
| summary: |- |
| Mattermost Server is vulnerable to XSS through author_link field in Slack |
| attachments in github.com/mattermost/mattermost-server |
| cves: |
| - CVE-2017-18879 |
| ghsas: |
| - GHSA-498j-wxww-j897 |
| references: |
| - advisory: https://github.com/advisories/GHSA-498j-wxww-j897 |
| - advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-18879 |
| - web: https://mattermost.com/security-updates |
| source: |
| id: GHSA-498j-wxww-j897 |
| created: 2025-12-05T21:38:51.096698584Z |
| review_status: UNREVIEWED |
