{"id":"CVE-2026-105205","published":"2026-10-04T15:16:31.350","lastModified":"2026-10-05T14:17:17.870","description":"SiYuan before 3.8.5 contains an information disclosure vulnerability that allows publish-mode readers to learn backlink block IDs and reference counts from password-protected and publish-disabled documents by querying a published document. Attackers can send POST requests to /api/block/getDocInfo or getDocsInfo for a published document ID to obtain refIDs and refCount of hidden referencing blocks, bypassing the publish confidentiality boundary.","cvssScore":5.3,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","cwes":["CWE-200"],"vendors":[],"products":[],"references":[{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v758-8w88-pfr2","tags":[]},{"url":"https://www.vulncheck.com/advisories/siyuan-before-3.8.5-information-disclosure-via-api-block-getdocinfo-and-getdocsinfo","tags":[]},{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v758-8w88-pfr2","tags":[]}],"exploitRefs":[{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v758-8w88-pfr2","tags":[]},{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-v758-8w88-pfr2","tags":[]}],"hasPoc":true,"ai":null}