medium4.3
CVE-2023-43754
Mattermost Exposure of Sensitive Information to an Unauthorized Actor vulnerability
Impact
Mattermost fails to check whether the "Allow users to view archived channels" setting is enabled during permalink previews display, allowing members to view permalink previews of archived channels even if the "Allow users to view archived channels" setting is disabled.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >= 9.1.0, < 9.1.1 | 9.1.1 |
| go | github.com/mattermost/mattermost-server/v6 | < 7.8.13 | 7.8.13 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost | through 7.8.12 from 8.0.0 through 8.1.3 from 9.0.0 through 9.0.1 Version 9.1.0 |