CVE-2026-100643

HIGHCVSS 8.0

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.

Published 2026-09-26 · last modified 2026-09-26

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.