Vulnerability in papermerge-core

[ Description ]Official description

Papermerge Core through 3.5.3 contains a missing authorization vulnerability in the shared nodes API that allows authenticated users to share other users' documents by supplying arbitrary node UUIDs. Attackers can call POST /shared-nodes or PATCH /shared-nodes/access/{node_id} to grant themselves any role, then read, modify, or delete victims' documents and revoke existing shares.

[ 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/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/…
• github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269
• github.com/papermerge/papermerge-core/issues/1290
• github.com/papermerge/papermerge-core/issues/1291
• www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-sha…