CVE-2026-73610

MEDIUM 5.8

SiYuan before v3.7.4 Information Disclosure via Local Storage

CVSS Score

5.8

EPSS Score

0.0%

EPSS Percentile

0th

SiYuan before v3.7.4 contains an information disclosure vulnerability in the local storage filter that returns the administrator's entire storage map with only three keys sanitized. Unauthenticated attackers or publish readers can retrieve closed-tab history, search keywords, private document identifiers, and expanded folder paths by calling the getLocalStorage endpoint.

CWE	CWE-639
Vendor	siyuan-note
Product	siyuan
Published	Aug 13, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

siyuan-note / siyuan

0 < 3.7.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/siyuan-note/siyuan/security/advisories/GHSA-xp3q-r38w-vgqm vulncheck.com: https://www.vulncheck.com/advisories/siyuan-before-information-disclosure-via-local-storage

Credits

🔍 Shirshakhtml