{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-116169", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-10-25T12:25:26.983Z", "datePublished": "2026-10-25T13:20:11.710Z", "dateUpdated": "2026-10-25T14:27:41.907Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-10-25T14:27:41.907Z"}, "datePublic": "2026-10-09T00:00:00.000Z", "title": "SiYuan 2.10.0 before 3.8.7 Stored XSS via KaTeX \\href in Math Blocks", "descriptions": [{"lang": "en", "value": "SiYuan from 2.10.0 before 3.8.7 contains a stored cross-site scripting vulnerability that allows users with edit permission to inject script by placing javascript: URLs in math block content rendered with KaTeX trust enabled. Attackers can store \\href, \\url, or \\includegraphics payloads that mathRender assigns via innerHTML, executing script in the application origin when a reader clicks the rendered link."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "cweId": "CWE-79", "type": "CWE"}]}], "affected": [{"vendor": "siyuan-note", "product": "siyuan", "defaultStatus": "unaffected", "packageURL": "pkg:golang/github.com/siyuan-note/siyuan/kernel", "versions": [{"version": "2.10.0", "status": "affected", "versionType": "semver", "lessThan": "3.8.7"}, {"version": "3.8.7", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.10.0", "versionEndExcluding": "3.8.7"}]}]}], "metrics": [{"cvssV4_0": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "baseScore": 5.1, "baseSeverity": "MEDIUM", "exploitMaturity": "NOT_DEFINED", "privilegesRequired": "LOW", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "LOW", "subIntegrityImpact": "LOW", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "format": "CVSS"}, {"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "format": "CVSS"}], "references": [{"url": "https://github.com/siyuan-note/siyuan/security/advisories/GHSA-hhvq-jqv9-pgjq", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-hhvq-jqv9-pgjq)"}, {"name": "VulnCheck Advisory: SiYuan 2.10.0 before 3.8.7 Stored XSS via KaTeX \\href in Math Blocks", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/siyuan-2.10.0-before-3.8.7-stored-xss-via-katex-href-in-math-blocks"}], "credits": [{"lang": "en", "value": "Cbdlll", "type": "reporter"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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