CVE-2026-73048CWE-862broken-access-control

CVE-2026-73048

Medium · published August 14, 2026

CVSS v3.1

5.8

EPSS

Percentile

24.3

In the wild

Unconfirmed

What it is

SiYuan versions before v3.7.4 contain an information disclosure vulnerability in the getRefIDsByFileAnnotationID endpoint that returns block identifiers citing PDF annotations without publish-access filtering. Attackers can extract block identifiers from restricted documents by supplying annotation identifiers visible in published pages, revealing citation relationships across forbidden and password-protected tiers.

The record

Technical detail

CVSS v3.1: 5.8 · MEDIUM
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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:L/SI:N/SA:N
EPSS: 0.00325 · 24.3th percentile
Weakness: CWE-862 · Missing Authorization
Published: 2026-08-14T16:16Z

References (3)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-f3q6-vc7q-m6h7 · [email protected]https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getrefidsbyfileannotationid · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-f3q6-vc7q-m6h7 · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

14 AUG 11:35Z
SiYuan before v3.7.4 Information Disclosure via getRefIDsByFileAnnotationID
cvelistv5