Description
Mattermost fails to use innerText / textContent when setting the channel name in the webapp during autocomplete, allowing an attacker to inject HTML to a victim's page by create a channel name that is valid HTML. No XSS is possible though.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mattermost | Mattermost | ≤ 8.1.3, ≤ 7.8.12 | 7.8.13 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/mattermost/mattermost-server/v6 | < 7.8.13 | 7.8.13 | GHSA-jcgv-3pfq-j4hr |
| Go | github.com/mattermost/mattermost/server/v8 | < 8.1.4 | 8.1.4 | GHSA-jcgv-3pfq-j4hr |
Advisories 1
- WID-SEC-2023-2763 Mattermost: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 27, 2023