Description (CNA)
SiYuan before v3.7.3 fails to apply publish-access filters to the getBacklinkDoc and getBackmentionDoc content endpoints (/api/ref/getBacklinkDoc and /api/ref/getBackmentionDoc). While the corresponding backlink list endpoints filter publish-forbidden documents, the content endpoints (gated only by CheckAuth) do not. A publish-mode reader — including an anonymous reader when publish Basic Auth is disabled — can call these endpoints directly with a publish-forbidden document's ID to retrieve its rendered DOM content and to determine whether the document references a given block (a reference-existence oracle).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| siyuan-note / siyuan | affected 0 before 3.7.3; unaffected 3.7.3 |
CWE
CWE-862
References
- https://github.com/siyuan-note/siyuan/security/advisories/GHSA-36v8-mpjm-8j5r
- https://www.vulncheck.com/advisories/siyuan-before-content-disclosure-via-getbacklinkdoc
ADP enrichment
No English description supplied.
No references supplied.