Vulnerability details

CVE-2026-69086

siyuan-note siyuan

SiYuan before v3.7.3 Path Traversal via unvalidated avID

CVSS 4.0

8.3High

Official description

SiYuan versions before v3.7.3 fail to validate the avID parameter on all code branches in attribute-view read endpoints, allowing attackers to construct traversal paths that escape the storage directory. Authenticated users with RoleReader permissions or anonymous clients when publish authentication is disabled can read JSON files outside the attribute-view directory to disclose cross-scope database content.

CVSS scores

Score	Version	Source	Vector
8.3High	4.0	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N`
7.7High	3.1	CVEProject cvelistV5 (CNA) (VulnCheck)	`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N`

Affected products

Vendor	Product	Versions	Source
siyuan-note	siyuan	v < 3.7.3	CVEProject cvelistV5 (CNA)

References and advisories

https://github.com/siyuan-note/siyuan/security/advisories/GHSA-7hm9-v7vf-7g4w vendor-advisory
https://www.vulncheck.com/advisories/siyuan-before-path-traversal-via-unvalidated-avid third-party-advisory

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Details

Published: 2026-08-03
Last updated: 2026-08-14
State: Published
Assigner (CNA): VulnCheck

Exploit prediction (EPSS)

0.53%

Probability of exploitation in 30 days

45.1%

Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable: No
Exploitation: None
Technical impact: Partial

Weaknesses (CWE)

CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')