CVE-2026-50551: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siyuan-note siyuan
SiYuan, an open-source personal knowledge management system, has a critical stored cross-site scripting (XSS) vulnerability in the Attribute View asset cell renderer prior to version 3.7.0. This vulnerability can escalate to remote code execution (RCE) in the Electron desktop client. The issue is fixed in version 3.7.0.
AI Analysis
Technical Summary
CVE-2026-50551 is a stored cross-site scripting (CWE-79) vulnerability affecting SiYuan versions before 3.7.0. The flaw exists in the Attribute View (database) asset cell renderer, allowing malicious input to be improperly neutralized during web page generation. This XSS vulnerability can escalate to remote code execution within the Electron desktop client environment. The vulnerability has a CVSS 3.1 base score of 9.9, indicating critical severity. The vulnerability is fixed in SiYuan version 3.7.0.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely on the victim's system via the Electron desktop client, leading to full compromise of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Upgrade SiYuan to version 3.7.0 or later, where this vulnerability is fixed. No other remediation or temporary mitigations are documented. Patch status is confirmed fixed in 3.7.0.
CVE-2026-50551: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in siyuan-note siyuan
Description
SiYuan, an open-source personal knowledge management system, has a critical stored cross-site scripting (XSS) vulnerability in the Attribute View asset cell renderer prior to version 3.7.0. This vulnerability can escalate to remote code execution (RCE) in the Electron desktop client. The issue is fixed in version 3.7.0.
CVSS v3.1
Score 9.9critical
Affected software
pkg:github/siyuan-note/siyuanRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-50551 is a stored cross-site scripting (CWE-79) vulnerability affecting SiYuan versions before 3.7.0. The flaw exists in the Attribute View (database) asset cell renderer, allowing malicious input to be improperly neutralized during web page generation. This XSS vulnerability can escalate to remote code execution within the Electron desktop client environment. The vulnerability has a CVSS 3.1 base score of 9.9, indicating critical severity. The vulnerability is fixed in SiYuan version 3.7.0.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely on the victim's system via the Electron desktop client, leading to full compromise of confidentiality, integrity, and availability of the affected system.
Mitigation Recommendations
Upgrade SiYuan to version 3.7.0 or later, where this vulnerability is fixed. No other remediation or temporary mitigations are documented. Patch status is confirmed fixed in 3.7.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-04T20:37:18.654Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3c501d4853345fc1e45bc1
Added to database: 06/24/2026, 21:46:05 UTC
Last enriched: 06/24/2026, 22:03:09 UTC
Last updated: 06/25/2026, 00:30:36 UTC
Views: 6
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