Gitea: Cross-repository IDOR in issue-dependency removal lets an attacker tamper with and comment on private repos they cannot access

Details RemoveDependency in routers/web/repo/issuedependency.go takes a removeDependencyID form parameter identifying the other issue by its global numeric ID, and fetches it with issuesmodel.GetIssueByIDctx, depID - no repository or permission check at all. It then calls...