CVE-2026-73049CWE-863broken-access-control

CVE-2026-73049

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 getAttributeViewBacklinks endpoint that consults the forbidden access list instead of the visibility list when filtering backlinks. Anonymous readers can supply a publicly visible database row identifier to discover hidden-tier documents that reference it, receiving the database name, row title, and document path of hidden documents.

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-863 · Incorrect Authorization
Published: 2026-08-14T16:16Z

References (3)

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4qw-vx5p-g984 · [email protected]https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-getattributeviewbacklinks · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-p4qw-vx5p-g984 · 134c704f-9b21-4f2e-91b3-4a467353bcc0

EPSS history

Timeline

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