An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by using a registered OAuth application with personal access tokens.
Weakness
The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Mattermost_server | Mattermost | * | 4.1.2 (excluding) |
| Mattermost_server | Mattermost | 4.2.0 (including) | 4.2.1 (excluding) |
| Mattermost_server | Mattermost | 4.3.0-rc1 (including) | 4.3.0-rc1 (including) |
| Mattermost_server | Mattermost | 4.3.0-rc2 (including) | 4.3.0-rc2 (including) |
| Mattermost_server | Mattermost | 4.3.0-rc3 (including) | 4.3.0-rc3 (including) |
| Mattermost_server | Mattermost | 4.3.0-rc4 (including) | 4.3.0-rc4 (including) |
Potential Mitigations
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/122.html
- https://cwe.mitre.org/data/definitions/233.html
- https://cwe.mitre.org/data/definitions/58.html