Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| siyuan-note | siyuan | 2.10.0 – < 3.8.7 | 3.8.7 |
References
- GitHub Security Advisory (GHSA-hhvq-jqv9-pgjq) vendor-advisory
- VulnCheck Advisory: SiYuan 2.10.0 before 3.8.7 Stored XSS via KaTeX \href in Math Blocks third-party-advisory