Description
SiYuan before v3.7.4 fails to set Content-Disposition and X-Content-Type-Options headers when serving arbitrary file assets, allowing stored cross-site scripting attacks. Authenticated attackers can upload HTML files as assets and execute scripts with full kernel API access when the workspace owner opens the asset link.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| siyuan-note | siyuan | < 3.7.4 | 3.7.4 |
References
- GitHub Security Advisory (GHSA-mjf3-jwmf-r6wf) vendor-advisory
- VulnCheck Advisory: SiYuan before v3.7.4 Stored XSS via assets endpoint third-party-advisory