CVE-2026-82653

CVSS 9.3 (critical) · published 2026-08-30

SiYuan before v3.8.1 contains a stored cross-site scripting vulnerability in confirmDialog() where unescaped package names and notebook names are interpolated directly into innerHTML assignments. Attackers can submit malicious bazaar packages with HTML/script payloads in the name field that execute in users' browsers when uninstalling packages or unlocking encrypted notebooks.

Weakness: CWE-79

Source: NVD CVE-2026-82653

References

• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvwp-43j9-4xgf
• https://www.vulncheck.com/advisories/siyuan-before-3.8.1-stored-xss-via-confirmdialog
• https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hvwp-43j9-4xgf

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