{
  "schemaVersion": 1,
  "incident": {
    "id": "cve-2026-107845",
    "url": "https://cveboard.org/i/cve-2026-107845",
    "urlPt": "https://cveboard.org/pt/i/cve-2026-107845",
    "json": "https://cveboard.org/i/cve-2026-107845.json",
    "kind": "vuln",
    "live": true,
    "knownExploited": false,
    "severity": "critical",
    "title": "Contao: Cross-site scripting in the comments bundle",
    "summary": "An unauthenticated front end visitor can post a comment containing a XSS injection. The victim is any back end user who opens the Comments module, and moderation makes exposure certain rather than preventing it. No Content-Security-Policy header is sent on the Contao back end, so nothing mitigates the inline handler.",
    "titlePt": "Contao: cross-site scripting no pacote de comentários",
    "summaryPt": "Um visitante do front end não autenticado pode postar um comentário contendo uma injeção XSS. A vítima é qualquer usuário do back end que abrir o módulo de Comentários, e a moderação torna a exposição certa em vez de preveni-la. Nenhum cabeçalho Content-Security-Policy é enviado no back end do Contao, então nada mitiga o manipulador inline.",
    "cves": [
      "CVE-2026-107845"
    ],
    "ghsa": "GHSA-628f-v4f6-p37r",
    "cvss": {
      "score": 9.3,
      "version": "3.1"
    },
    "epss": {
      "percentage": 0.00272,
      "percentile": 0.17978,
      "asOf": "2026-10-23"
    },
    "packages": [
      {
        "ecosystem": "composer",
        "name": "contao/comments-bundle",
        "vulnerable": ">= 4.0.0, < 5.3.50",
        "fixed": "5.3.50",
        "advisory": "GHSA-628f-v4f6-p37r"
      },
      {
        "ecosystem": "composer",
        "name": "contao/comments-bundle",
        "vulnerable": ">= 5.4.0-RC1, < 5.7.12",
        "fixed": "5.7.12",
        "advisory": "GHSA-628f-v4f6-p37r"
      }
    ],
    "vendor": null,
    "product": null,
    "kev": null,
    "breach": null,
    "retracted": false,
    "sources": [
      {
        "label": "GitHub Advisory Database",
        "url": "https://github.com/advisories/GHSA-628f-v4f6-p37r"
      }
    ],
    "publishedAt": "2026-10-09T20:53:50.000Z",
    "updatedAt": "2026-10-09T20:53:50.000Z"
  },
  "live": true,
  "events": [
    {
      "id": "ghsa:GHSA-628f-v4f6-p37r:ghsa_published:2026-10-09T20:53:50.000Z",
      "incidentId": "cve-2026-107845",
      "type": "ghsa_published",
      "at": "2026-10-09T20:53:50.000Z",
      "detail": {
        "ghsa": "GHSA-628f-v4f6-p37r",
        "severity": "critical",
        "fixed": "5.3.50, 5.7.12"
      }
    }
  ]
}