Vulnerability record · CVE-2026-92985 · published 17 September 2026

CVE-2026-92985: Cross-site scripting vulnerability

SiYuan versions before 3.8.4 fail to escape bookmark labels imported from notebook files when rendering them in the dock tree. Attackers can craft malicious .sy notebook files with unescaped HTML in bookmark attributes that execute scripts in the Electron renderer with access to child_process for command execution.

8.6 CVSS 4.0 High EPSS 0.82% · top 44.6% CWE-79 · Cross-site scripting Deferred

8.6CVSS 4.0 base score

0.82%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

6References

17 Sep 2026Last modified by NVD

Description

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

Link	Tags
https://github.com/siyuan-note/siyuan
https://github.com/siyuan-note/siyuan/blob/v3.8.3/app/src/util/Tree.ts#L134
https://github.com/siyuan-note/siyuan/commit/6f093ebe50afc503e2a8b056164293054f8509e7
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-jhfc-9mcq-8p8v
https://www.vulncheck.com/advisories/siyuan-before-3.8.4-cross-site-scripting-via-bookmark-labels
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-jhfc-9mcq-8p8v

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-92985), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.