CVE-2026-34448

{"id": "CVE-2026-34448", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 9.0, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 6.0, "exploitabilityScore": 2.3}]}, "published": "2026-03-31T22:16:19.657", "references": [{"url": "https://github.com/siyuan-note/siyuan/issues/17246", "tags": ["Issue Tracking"], "source": "security-advisories@github.com"}, {"url": "https://github.com/siyuan-note/siyuan/releases/tag/v3.6.2", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-rx4h-526q-4458", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}, {"lang": "en", "value": "CWE-94"}]}], "descriptions": [{"lang": "en", "value": "SiYuan is a personal knowledge management system. Prior to version 3.6.2, an attacker who can place a malicious URL in an Attribute View mAsse field can trigger stored XSS when a victim opens the Gallery or Kanban view with \u201cCover From -> Asset Field\u201d enabled. The vulnerable code accepts arbitrary http(s) URLs without extensions as images, stores the attacker-controlled string in coverURL, and injects it directly into an <img src=\"...\"> attribute without escaping. In the Electron desktop client, the injected JavaScript executes with nodeIntegration enabled and contextIsolation disabled, so the XSS reaches arbitrary OS command execution under the victim\u2019s account. This issue has been patched in version 3.6.2."}], "lastModified": "2026-04-03T16:58:40.760", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "27CB71A7-7208-417A-AE6D-266D57F683E9", "versionEndExcluding": "3.6.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}