{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-58504","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-30T20:21:25.813Z","datePublished":"2026-09-21T16:15:30.398Z","dateUpdated":"2026-09-29T15:05:34.205Z"},"containers":{"cna":{"title":"draw.io: Stored XSS on file open via editable=0 sibling cell — patch bypass of CVE-2026-46642","problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/jgraph/drawio/security/advisories/GHSA-c76x-r78m-phwx","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jgraph/drawio/security/advisories/GHSA-c76x-r78m-phwx"},{"name":"https://github.com/jgraph/drawio/commit/7976c02e1b10b1687c028d82782f9f5d90a885d6","tags":["x_refsource_MISC"],"url":"https://github.com/jgraph/drawio/commit/7976c02e1b10b1687c028d82782f9f5d90a885d6"},{"name":"https://github.com/jgraph/drawio/releases/tag/v30.2.5","tags":["x_refsource_MISC"],"url":"https://github.com/jgraph/drawio/releases/tag/v30.2.5"}],"affected":[{"vendor":"jgraph","product":"drawio","versions":[{"version":"< 30.2.5","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-09-21T16:15:30.398Z"},"descriptions":[{"lang":"en","value":"draw.io is a configurable diagramming and whiteboarding application. Prior to version 30.2.5, opening or importing a crafted .drawio file can execute attacker-controlled JavaScript in the draw.io origin when selected cells are processed by TextFormatPanel.addFont() in src/main/webapp/js/grapheditor/Format.js. An HTML sibling cell keeps the formatted-label path enabled while an editable=0 plain-text sibling is excluded from the merged selection style but remains in the iteration set. graph.cellRenderer.getLabelValue() returns that plain-text label without HTML encoding, and mxUtils.canConvertHtmlToSvg() parses it as HTML, bypassing the earlier CVE-2026-46642 remediation. Successful exploitation can expose diagram data, browser storage, non-HttpOnly cookies, and same-origin actions available to the victim. This issue is fixed in version 30.2.5."}],"source":{"advisory":"GHSA-c76x-r78m-phwx","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/jgraph/drawio/security/advisories/GHSA-c76x-r78m-phwx","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-29T15:05:28.465307Z","id":"CVE-2026-58504","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-09-29T15:05:34.205Z"}}]}}