CVE-2026-103762

medium

Description

SiYuan before v3.8.5 contains a missing authorization vulnerability in the getRefCreateSavePath, getShorthandSavePath, and getDocCreateSavePath endpoints that allows read-only publish visitors to learn unpublished notebook box IDs. Attackers with read-only or anonymous publish access can POST any open notebook ID to receive the global save-box ID and save-path template, revealing a hidden notebook's existence and creation time.

References

https://www.vulncheck.com/advisories/siyuan-before-3.8.5-missing-authorization-in-save-path-resolver-endpoints

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-2mrf-mx66-vv6g

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-91419

Details

Source: Mitre, NVD

Published: 2026-10-02

Updated: 2026-10-06

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Severity: Medium

EPSS

EPSS: 0.00296