CVE-2026-92985
SiYuan before 3.8.4 Cross-Site Scripting via Bookmark Labels
- State
- Published
- Severity
- 8.6 High
- Published
- Sep 17, 2026
- Updated
- Sep 17, 2026
- Reserved
- Sep 17, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.6 High | 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 | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Products
| Product | Versions |
|---|---|
siyuansiyuan-note |
|
References
- Patch Commitpatch
- https://github.com/siyuan-note/siyuanproduct
- GitHub Security Advisory (GHSA-jhfc-9mcq-8p8v)vendor-advisory
- https://github.com/siyuan-note/siyuan/blob/v3.8.3/app/src/util/Tree.ts#L134technical-description
- VulnCheck Advisory: SiYuan before 3.8.4 Cross-Site Scripting via Bookmark Labelsthird-party-advisory
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