CVE-2026-92985 SiYuan - Stored XSS

SiYuan < 3.8.4 contains a stored XSS caused by unescaped bookmark labels imported from notebook files in the dock tree, letting attackers execute scripts with child_process access for command execution, exploit requires crafted .sy notebook files.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.82% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Stored XSS
Impact
Remote Code Execution
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-79

References

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