CVE-2026-100643 — SiYuan before v3.8.4 Stored XSS via Attribute View textarea
SiYuan versions before v3.8.4 fail to properly escape four stored Attribute View values in textarea elements, allowing authenticated attackers to inject JavaScript by modifying …
Published: 2026-09-26 · CVSS: 8.5 · CVSS 4.0
SiYuan versions before v3.8.4 fail to properly escape four stored Attribute View values in textarea elements, allowing authenticated attackers to inject JavaScript by modifying field descriptions, template sources, select option descriptions, or footer calculation templates. Attackers can execute stored JavaScript when other users open affected database menus, and in the Electron desktop app with nodeIntegration enabled, this leads to command execution with SiYuan process privileges.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7