CVE-2026-92985CWE-79cross-site-scripting

CVE-2026-92985

High · published September 17, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
56.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
8.6 · 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
EPSS
0.00816 · 56.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-17T19:17Z
References (6)
https://github.com/siyuan-note/siyuan · [email protected]https://github.com/siyuan-note/siyuan/blob/v3.8.3/app/src/util/Tree.ts#L134 · [email protected]https://github.com/siyuan-note/siyuan/commit/6f093ebe50afc503e2a8b056164293054f8509e7 · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-jhfc-9mcq-8p8v · [email protected]https://www.vulncheck.com/advisories/siyuan-before-3.8.4-cross-site-scripting-via-bookmark-labels · [email protected]https://github.com/siyuan-note/siyuan/security/advisories/GHSA-jhfc-9mcq-8p8v · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 19 SEP 03:55Z
    EPSS moved — → 1%
    epss
  • 17 SEP 14:22Z
    SiYuan before 3.8.4 Cross-Site Scripting via Bookmark Labels
    cvelistv5