{"id":"CVE-2026-100645","title":"SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes","summary":"SiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes. In the Electron desktop app with nodeInteg…","severity":"high","cvss":8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-79"],"vendor":"siyuan-note","product":"siyuan","affected":["siyuan >= 3.7.0 < 3.8.4"],"published":"2026-09-26","updated":"2026-10-08","sourceUpdated":"2026-10-08T16:16:58.060","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100645","references":[{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-556j-q8c8-qqg3","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/siyuan-3.7.0-before-3.8.4-stored-xss-via-gallery-kanban","label":"disclosure@vulncheck.com"},{"url":"https://github.com/siyuan-note/siyuan/security/advisories/GHSA-556j-q8c8-qqg3","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-10-02T17:55:16.020546Z"},"epss":0.00439,"epssPercentile":0.37991,"ingestedAt":"2026-09-26T13:33:20.923Z","slug":"CVE-2026-100645","body":"## Overview\n\nSiYuan versions 3.7.0 before 3.8.4 contain a stored cross-site scripting vulnerability in gallery and kanban database renderers where field descriptions are not escaped in aria-label attributes. In the Electron desktop app with nodeIntegration enabled, attackers can inject JavaScript that calls Node.js child_process APIs to execute arbitrary commands with user privileges.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":56,"depthScoreParts":{"impact":44,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":215026,"id":"CVE-2026-100645","ts":1790965545347,"field":"exploit_available","old":"false","new":"true"}]}