Vulnerability in outline

[ Description ]Official description

Outline before 1.8.0 contains an improper access revocation vulnerability that allows deleted administrators to keep receiving document contents because UserDeletedProcessor never disables their WebhookSubscription rows. Former admins who registered webhooks before deletion continue receiving full document bodies, including Markdown and Yjs data, via DeliverWebhookTask for every matching workspace event.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/outline/outline/blob/v1.7.1/server/queues/processors/UserDeletedProcessor.ts
• github.com/outline/outline/commit/e044014cea958962fc9f5e2b8f6ff1d8cadd676f
• github.com/outline/outline/releases/tag/v1.8.0
• github.com/outline/outline/security/advisories/GHSA-33jq-x32c-3ccw
• www.vulncheck.com/advisories/outline-before-1.8.0-information-disclosure-via-orphaned-w…