TYPO3 Core: Mehrere Schwachstellen
WID-SEC-2026-1835 · first 09.06.2026 · updated 10.06.2026 · CVSS 8,1
What it is about
TYPO3 ist ein freies Content-Management-System, basierend auf der Scriptsprache PHP und einer SQL-Datenbank. Über zahlreiche Extensions kann der Funktionsumfang der Core-Installation individuell erweitert werden. Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in TYPO3 Core ausnutzen, um Sicherheitsbeschränkungen zu umgehen, Benutzer auf schädliche Websites umzuleiten, beliebigen Code auszuführen, Berechtigungen zu eskalieren oder andere Auswirkungen zu verursachen.
Under what conditions?
Over the network, but only with valid access (login required), for example with stolen credentials or as an insider.
What can happen in the worst case
An attacker could use the vulnerability to
- Sicherheitsbeschränkungen zu umgehen
- Benutzer auf schädliche Websites umzuleiten
- beliebigen Code auszuführen
- Berechtigungen zu eskalieren oder andere Auswirkungen zu verursachen
Am I affected?
Affected according to the BSI:
- TYPO3 Core <10.4.57 ELTS
- TYPO3 Core <11.5.51 ELTS
- TYPO3 Core <12.4.46 ELTS
- TYPO3 Core <13.4.31 LTS
- TYPO3 Core <14.3.3 LTS
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- TYPO3 Core 10.4.57 ELTS
- TYPO3 Core 11.5.51 ELTS
- TYPO3 Core 12.4.46 ELTS
- TYPO3 Core 13.4.31 LTS
- TYPO3 Core 14.3.3 LTS
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-006 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-007 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-008 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-009 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-010 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-011 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-012 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-013 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-014 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-015 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-016 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-018 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-019 vom 2026-06-08 typo3.org
- Typo3 Core Security Advisory TYPO3-CORE-SA-2026-017 vom 2026-06-08 typo3.org
CVE: CVE-2026-11607, CVE-2026-47343, CVE-2026-47344, CVE-2026-47345, CVE-2026-47346, CVE-2026-47347, CVE-2026-47348, CVE-2026-47349, CVE-2026-47350, CVE-2026-47351, CVE-2026-47352, CVE-2026-49738, CVE-2026-49740, CVE-2026-49741, CVE-2026-49742
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.