CVE-2026-87813
SiYuan before v3.8.2 Stored XSS via unescaped asset filenames
CVSS Score
7.3
EPSS Score
0.0%
EPSS Percentile
0th
SiYuan before v3.8.2 contains a stored cross-site scripting vulnerability in the Search Assets result list where asset filenames are interpolated into HTML without escaping. Authenticated attackers can craft asset filenames containing malicious markup that executes JavaScript in the victim's browser when searching assets, enabling same-origin API requests and application state manipulation.
| CWE | CWE-79 |
| Vendor | siyuan-note |
| Product | siyuan |
| Published | Sep 9, 2026 |
| Last Updated | Sep 9, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Affected Versions
siyuan-note / siyuan
0 < 3.8.2