Description
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, POST /api/tag/getTag is registered with model.CheckAuth only, omitting both model.CheckAdminRole and model.CheckReadonly, despite the handler performing a configuration write that is normally guarded by both. Any authenticated user — including publish-service RoleReader accounts and RoleEditor accounts on a read-only workspace — can call this endpoint with a sort argument to mutate model.Conf.Tag.Sort and trigger model.Conf.Save(), which atomically rewrites the entire workspace conf.json. This vulnerability is fixed in 3.7.0.
Problem types
CWE-285: Improper Authorization
CWE-862: Missing Authorization
Product status
References
github.com/...siyuan/security/advisories/GHSA-6r88-8v7q-q4p2
github.com/...siyuan/security/advisories/GHSA-6r88-8v7q-q4p2