Critical severity · published Jun 24, 2026
CVE-2026-50551
SiYuan: Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content
9.9
CVSS
0.6%
EPSS
No
On KEV
Description
SiYuan is an open-source personal knowledge management system. Prior to 3.7.0, SiYuan contains a stored cross-site scripting (XSS) vulnerability in the Attribute View (database) asset cell renderer that escalates to remote code execution (RCE) in the Electron desktop client. This vulnerability is fixed in 3.7.0.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 46% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SI
siyuan · siyuan-note
< 3.7.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-50551
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-50551
github.com
https://github.com/siyuan-note/siyuan/security/advisories/GHSA-56mp-4f3v-fgj2
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