This advisory has been withdrawn because it is a duplicate of GHSA-qvq9-hq6p-v378. This link is maintained to preserve external references.

SiYuan versions before v3.7.4 fail to enforce publish-access checks in the getBlockAttrs and batchGetBlockAttrs endpoints. Attackers can retrieve block attributes including names, aliases, memos, and custom fields from protected documents by sending POST requests with block IDs.