Github Apps can use Scoped-User-To-Server Tokens to Obtain Full Access to User's Projects in Project V2 GraphQL api
Team Summary
Official summary from GitHub
An incorrect authorization vulnerability was identified in GitHub Enterprise Server, allowing for escalation of privileges in GraphQL API requests from GitHub Apps. This vulnerability allowed an app installed on an organization to gain access to and modify most organization-level resources that are not tied to a repository regardless of granted permissions, such as users and organization-wide projects. Resources associated with repositories were not impacted, such as repository file content, repository-specific projects, issues, or pull requests. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.7.1 and was fixed in versions 3.3.16, 3.4.11, 3.5.8, 3.6.4, 3.7.1. This vulnerability was reported via the GitHub Bug Bounty program.
Report Details
Additional information and metadata
State
Closed
Substate
Resolved
Bounty
$20000.00
Submitted
Weakness
Improper Access Control - Generic