TYPO3 Exception 1588095935

Note

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TYPO3CMSCoreHttpSecurityMissingReferrerException

#1588095935 TYPO3\CMS\Core\Http\Security\MissingReferrerException
Missing referrer for /main

This error occurs when logging into the backend or install tool after updating from TYPO3 9.5.16 to 9.5.20. This error is triggered by the feature “security.backend.enforceReferrer” which was introduced in 9.5.17 and is enabled by default.

Solution

Visit the related security advisory for more information on how to resolve the issue.