This advisory has been withdrawn because it is a duplicate of GHSA-53fp-9jmv-227g. This link is maintained to preserve external references.

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the /api/storage/getOutlineStorage endpoint that performs no authorization checks. Attackers can retrieve outline state including heading identifiers for any document by supplying its identifier, even for documents forbidden to the requester.