Executive brief
Scoold is a team knowledge-sharing and Q&A platform. Authenticated users can bypass access controls on private spaces to add replies and comments to discussions they cannot normally read or access. This allows unauthorized users to modify private conversations, send unwanted notifications, and potentially disrupt team communications or reveal sensitive discussion metadata.
Technical details
This is a privilege escalation vulnerability caused by missing authorization checks in the reply and comment creation endpoints. The QuestionController.reply() and CommentController.createAjax() methods fail to apply the canAccessSpace authorization check used by the question read path. An authenticated user with knowledge of a question identifier can send POST requests to /question/{id} or /comment to create content in private spaces they are not members of. Attack requires valid session credentials and a known or enumerable question ID; no network restrictions apply. The issue is fixed in version 1.69.0 via commit 6976afb which adds space membership checks to multiple code paths.
Affected products
- Erudika Scoold before 1.69.0
Timeline
- 2026-09-17: disclosed
- 2026-06-12: patched: Fixed in version 1.69.0