CVE-2026-103762CWE-862broken-access-control

CVE-2026-103762

Medium · published October 2, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
13.8
In the wild
Unconfirmed
What it is

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getShorthandSavePath, and getDocCreateSavePath endpoints that allows read-only publish visitors to learn unpublished notebook box IDs.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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
6.9 · 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
EPSS
0.00237 · 13.8th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-02T16:17Z
References (3)
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-2mrf-mx66-vv6g · [email protected]https://www.vulncheck.com/advisories/siyuan-before-3.8.5-missing-authorization-in-save-path-resolver-endpoints · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-2mrf-mx66-vv6g · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 04 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 02 OCT 11:37Z
    SiYuan before v3.8.5 Missing Authorization in Save-Path Resolver Endpoints
    cvelistv5