Mattermost 6.4.x and earlier fails to properly invalidate pending email invitations when the action is performed from the system console, which allows accidentally invited users to join the workspace and access information from the public teams and channels.
Solution:
The product does not maintain or incorrectly maintains control over a resource throughout its lifetime of creation, use, and release.
The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.
| Link | Tags |
|---|---|
| https://mattermost.com/security-updates/ | vendor advisory |
| https://hackerone.com/reports/1486820 | third party advisory exploit |