CVE-2026-116169
SiYuan 2.10.0 before 3.8.7 Stored XSS via KaTeX \href in Math Blocks
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th
SiYuan from 2.10.0 before 3.8.7 contains a stored cross-site scripting vulnerability that allows users with edit permission to inject script by placing javascript: URLs in math block content rendered with KaTeX trust enabled. Attackers can store \href, \url, or \includegraphics payloads that mathRender assigns via innerHTML, executing script in the application origin when a reader clicks the rendered link.
| CWE | CWE-79 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Oct 25, 2026 |
Stay Ahead of the Next One
Get instant alerts for siyuan-note siyuan
Be the first to know when new medium vulnerabilities affecting siyuan-note siyuan are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
siyuan-note / siyuan
2.10.0 < 3.8.7
References
Credits
🔍 Cbdlll