Description
Outline before 1.12.0 contains an improper access control vulnerability that allows unauthenticated users to read unpublished documents because the share loader ignores unpublished status. Attackers holding an existing share link can query shares.info, documents.info, or the /s/ share routes to read withdrawn content, while shares.revoke returns 404 and blocks revocation.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Outline | Outline | < 1.12.0 | 1.12.0 |
References
- GitHub Security Advisory (GHSA-rq53-m97j-f2pg) vendor-advisory
- https://github.com/outline/outline/commit/d015a32459b5f5c5a8ef67aeb81742eeab430c52 patch
- Outline v1.12.0 Release Notes release-notes
- https://github.com/outline/outline/blob/v1.11.0/server/commands/shareLoader.ts#L50-L77 technical-description
- VulnCheck Advisory: Outline before 1.12.0 Improper Access Control via Public Document Shares third-party-advisory