by Kastro
Paper/Archive/CVE-2026-50551

CVE-2026-50551

siyuan-note siyuan — SiYuan: Stored XSS to RCE via Unsanitized Attribute View Asset Cell Content

EPSS 0.6%public exploitCVSS 9.9
critical.is priorityof 100
49
CVSS 9.9 (CNA)9.9 / 10 × 3029.7Not in CISA KEV+300.0EPSS percentile 46.7.467 × 209.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
siyuan< 3.7.0–CNA

Scores by source

GitHub_M (CNA)9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: no · Technical impact: total

References

exploitgithub.com/siyuan-note/siyuan/security/advisories/GHSA-56mp-4f3v-fgj2