Description
Outline is a service that allows for collaborative documentation. Prior to 1.7.0, the shares.create API accepts both collectionId and documentId simultaneously and, when published=false, only verifies read access for each—skipping the "share" permission check. A subsequent shares.update authorizes publication using an OR policy (can share collection OR can share document), so an attacker who holds share permission on one unrelated collection can publish a share that exposes an arbitrary document they cannot legitimately share, making it publicly accessible to unauthenticated users. This vulnerability is fixed in 1.7.0.
Problem types
CWE-863: Incorrect Authorization
Product status
References
github.com/...utline/security/advisories/GHSA-rg4j-pmch-w6pm
github.com/...utline/security/advisories/GHSA-rg4j-pmch-w6pm