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Software Entwicklung & Support

Ein breites Spektrum an Erfahrungen und Techniken bieten die Grundlage für meine Leistungen. Ob System Upgrades z.B. typo3 4.5 auf 6.2 oder 8.7, API Deisgn für Integrierte Anwendungen auch in SAPUI5. 

 

Einführung des "continuous integration process" bei tp3 verspricht höcher Qualität bei flexiblerer Leistung!

 

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Problem Description

It has been discovered that the FileDumpController (backend and frontend context) is vulnerable to cross-site scripting when malicious files are displayed using this component. A valid backend user account is needed to exploit this vulnerability.

Solution

Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix the problem described above.

Credits

Thanks to Vautia who reported this issue and to TYPO3 core & security team member Oliver Hader who fixed the issue.

General Advice

Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.

General Note

All security related code changes are tagged so that you can easily look them up in our review system.