{"id":"CVE-2026-116796","state":"PUBLISHED","title":"Highcharts Core: `javascript:` URL in an `xlink:href` attribute survives text filtering and reaches exported charts","description":"Highcharts JS is a JavaScript charting library based on SVG. From 10.3.2 until 11.4.9, 12.6.2, and 13.1.1, Highcharts accepts an SVG anchor xlink:href attribute without applying the allowed-scheme check used for href and src. An attacker who controls a chart text option can preserve a javascript URL in serialized chart output. When exported or server-rendered SVG is parsed again and a user activates the link, script runs in the origin of that document. This issue is fixed in 11.4.9, 12.6.2 and 13.1.1.","publishedAt":"2026-10-28T17:23:02.604Z","updatedAt":"2026-10-29T18:34:59.207Z","severity":{"score":7.2,"label":"High","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["highcharts highcharts"],"affected":[{"vendor":"highcharts","product":"highcharts","versions":[{"version":">= 10.3.2, < 11.4.9","status":"affected"},{"version":">= 12.0.0, < 12.6.2","status":"affected"},{"version":">= 13.0.0, < 13.1.1","status":"affected"}]}],"references":["https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4","https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88","https://github.com/highcharts/highcharts/releases/tag/v13.1.1"],"weaknesses":["CWE-79"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116796.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116796","state":"PUBLISHED","datePublished":"2026-10-28T17:23:02.604Z","dateUpdated":"2026-10-29T18:34:59.207Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-26T21:53:35.168Z"},"containers":{"cna":{"title":"Highcharts Core: `javascript:` URL in an `xlink:href` attribute survives text filtering and reaches exported charts","descriptions":[{"lang":"en","value":"Highcharts JS is a JavaScript charting library based on SVG. From 10.3.2 until 11.4.9, 12.6.2, and 13.1.1, Highcharts accepts an SVG anchor xlink:href attribute without applying the allowed-scheme check used for href and src. An attacker who controls a chart text option can preserve a javascript URL in serialized chart output. When exported or server-rendered SVG is parsed again and a user activates the link, script runs in the origin of that document. This issue is fixed in 11.4.9, 12.6.2 and 13.1.1."}],"affected":[{"vendor":"highcharts","product":"highcharts","versions":[{"version":">= 10.3.2, < 11.4.9","status":"affected"},{"version":">= 12.0.0, < 12.6.2","status":"affected"},{"version":">= 13.0.0, < 13.1.1","status":"affected"}]}],"references":[{"url":"https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4","name":"https://github.com/highcharts/highcharts/security/advisories/GHSA-mw4f-gj5x-6xr4","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88","name":"https://github.com/highcharts/highcharts/commit/6cf359fb144aa51fdc105e2b9bbd013439b02c88","tags":["x_refsource_MISC"]},{"url":"https://github.com/highcharts/highcharts/releases/tag/v13.1.1","name":"https://github.com/highcharts/highcharts/releases/tag/v13.1.1","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"ACTIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":7.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:N/SC:L/SI:L/SA:N","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-79","lang":"en","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-28T17:23:02.604Z"},"source":{"advisory":"GHSA-mw4f-gj5x-6xr4","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-29T18:34:49.411209Z","id":"CVE-2026-116796","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-29T18:34:59.207Z"}}]}}}