TYPO3 Core: Mehrere Schwachstellen
WID-SEC-2026-0726 · first 28.07.2020 · updated 16.03.2026 · CVSS 8,8
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 Angreifer kann mehrere Schwachstellen in TYPO3 Core ausnutzen, um Informationen offenzulegen und seine Rechte zu erweitern.
Under what conditions?
Over the network.
What can happen in the worst case
An attacker could use the vulnerability to
- Informationen offenzulegen
- seine Rechte zu erweitern
Am I affected?
Affected according to the BSI:
- TYPO3 Core <9.5.20
- TYPO3 Core <10.4.6
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- TYPO3 Core 9.5.20
- TYPO3 Core 10.4.6
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 Security Advisory vom 2020-07-27 typo3.org
- TYPO3 Security Advisory vom 2020-07-27 typo3.org
- PoC auf GitHub vom 2026-03-15 github.com
CVE: CVE-2020-15098, CVE-2020-15099
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.