TYPO3 contains a flaw that may allow a malicious user to crack its encryption key. The System Extension Install Tool creates the key using an insufficiently random seed. It is possible that the flaw may allow the key to be compromised resulting in a loss of confidentiality.
Remote / Network Access
Loss of Confidentiality
Upgrade to version 4.0.10, 4.1.8, 4.2.4 or higher, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.
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