CVE-2026-100645

SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes. In the Electron desktop app with nodeIntegration enabled, attackers can inject JavaScript that calls Node.js child_process APIs to execute arbitrary commands with user privileges.

CVSS 4.0

8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

8.0CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

EPSS

0.4% chance of exploitation in the next 30 days; higher than 37% of CVEs (scores of 2026-10-25)

CWE

CWE-79

Published

2026-09-26

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-556j-q8c8-qqg3
• https://www.vulncheck.com/advisories/siyuan-3.7.0-before-3.8.4-stored-xss-via-gallery-kanban
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-556j-q8c8-qqg3

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