{
 "id": "AIR-2026-0700",
 "slug": "cve-2026-45318-open-webui-stored-xss-via-unsanitized-office",
 "title": "CVE-2026-45318: Open WebUI Stored XSS via Unsanitized Office Preview Rendering",
 "summary": "A regression flaw in Open WebUI allows stored cross-site scripting via unsanitized spreadsheet and document file previews. The component fails to properly purify HTML rendering output.",
 "type": "attack_on_ai",
 "categories": [
  "infra_vuln"
 ],
 "severity": 2,
 "targets": [
  "framework_or_tooling"
 ],
 "products": [
  "Open WebUI"
 ],
 "incident_date": "2026-05-14",
 "incident_date_precision": "day",
 "first_reported": "2026-05-14",
 "sources": [
  {
   "url": "https://github.com/advisories/GHSA-hcwp-82g6-8wxc",
   "publisher": "GitHub Advisory Database",
   "title": "CVE-2026-45318: Open WebUI has stored XSS via unsanitized Office/Excel/DOCX file preview rendering ({@html} without DOMPurify)",
   "published_at": "2026-05-14"
  },
  {
   "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45318",
   "publisher": "NVD",
   "title": "CVE-2026-45318: Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline.",
   "published_at": "2026-05-15"
  }
 ],
 "source_count": 2,
 "confidence": 0.95,
 "status": "published",
 "origin": "seed_ghsa",
 "tags": [
  "CVE-2026-45318",
  "xss",
  "input-validation"
 ],
 "created_at": "2026-10-18T07:00:14.101Z",
 "updated_at": "2026-10-18T10:04:21.885Z"
}