{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-104250","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-01T19:04:39.706Z","datePublished":"2026-10-13T16:29:28.813Z","dateUpdated":"2026-10-14T15:32:42.130Z"},"containers":{"cna":{"title":"unstructured: Stored XSS via unescaped HTML generation","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/Unstructured-IO/unstructured/security/advisories/GHSA-v5mq-3xhg-98m9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-v5mq-3xhg-98m9"},{"name":"https://github.com/Unstructured-IO/unstructured/pull/4394","tags":["x_refsource_MISC"],"url":"https://github.com/Unstructured-IO/unstructured/pull/4394"},{"name":"https://github.com/Unstructured-IO/unstructured/commit/cda16b3f2170019be9c6ea5635946fb3eaa2d66f","tags":["x_refsource_MISC"],"url":"https://github.com/Unstructured-IO/unstructured/commit/cda16b3f2170019be9c6ea5635946fb3eaa2d66f"},{"name":"https://github.com/Unstructured-IO/unstructured/releases/tag/0.24.1","tags":["x_refsource_MISC"],"url":"https://github.com/Unstructured-IO/unstructured/releases/tag/0.24.1"}],"affected":[{"vendor":"Unstructured-IO","product":"unstructured","versions":[{"version":"< 0.24.1","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-13T16:29:28.813Z"},"descriptions":[{"lang":"en","value":"The unstructured library provides open-source components for ingesting and pre-processing images and text documents, such as PDFs, HTML, Word docs, and many more. Prior to 0.24.1, partition_html(html_parser_version=\"v2\") and the VLM partitioner can preserve untrusted document tags, attributes, text, and link targets in metadata.text_as_html, while elements_to_html() emits the result as an HTML document. The to_html() path in unstructured/documents/ontology.py does not escape output or reject unsafe URL schemes, allowing event-handler attributes, attribute breakout markup, and javascript: links to survive parsing. When the generated HTML or text_as_html is rendered in a browser, attacker-controlled script can execute in the viewer's origin, including in document-ingestion workflows where a privileged reviewer opens submitted content. This issue is fixed in version 0.24.1."}],"source":{"advisory":"GHSA-v5mq-3xhg-98m9","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/Unstructured-IO/unstructured/security/advisories/GHSA-v5mq-3xhg-98m9","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-14T15:32:11.460266Z","id":"CVE-2026-104250","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":"2026-10-14T15:32:42.130Z"}}]}}