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CVE-2026-19418 TYPO3 CMS - Broken Access Control in Backend and Install Tool

🗓️ 11 Aug 2026 07:29:37Reported by TYPO3Type 
cvelist
 cvelist
🔗 www.cve.org👁 7 Views

Broken access control in TYPO3 CMS 13.0-14.3 allows XSS-triggered privileged backend access.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-19418
11 Aug 202607:29
attackerkb
cve
CVE
CVE-2026-19418
11 Aug 202607:29
cve
euvd
EUVD
EUVD-2026-55971
11 Aug 202607:29
euvd
nvd
NVD
CVE-2026-19418
11 Aug 202608:17
nvd
[
  {
    "vendor": "TYPO3",
    "product": "TYPO3 CMS",
    "collectionURL": "https://packagist.org",
    "packageName": "typo3/cms-backend",
    "repo": "https://github.com/TYPO3/typo3",
    "modules": [
      "Backend",
      "Install"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "13.0.0",
        "lessThan": "13.4.34",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "14.0.0",
        "lessThan": "14.3.6",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TYPO3",
    "product": "TYPO3 CMS",
    "collectionURL": "https://packagist.org",
    "packageName": "typo3/cms-core",
    "repo": "https://github.com/TYPO3/typo3",
    "modules": [
      "Backend",
      "Install"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "13.0.0",
        "lessThan": "13.4.34",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "14.0.0",
        "lessThan": "14.3.6",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  },
  {
    "vendor": "TYPO3",
    "product": "TYPO3 CMS",
    "collectionURL": "https://packagist.org",
    "packageName": "typo3/cms-install",
    "repo": "https://github.com/TYPO3/typo3",
    "modules": [
      "Backend",
      "Install"
    ],
    "versions": [
      {
        "status": "affected",
        "version": "14.0.0",
        "lessThan": "14.3.6",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

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