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WS-2019-0345

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Date: December 23, 2019

Insecure Deserialization vulnerability found in TYPO3 CMS 8.x before 8.7.30 and 9.x before 9.5.12. It has been discovered that request handling in Extbase can be vulnerable to insecure deserialization. User submitted payload has to be signed with a corresponding HMAC-SHA1 using the sensitive TYPO3 encryptionKey as secret - invalid or unsigned payload is not deserialized.

Language: PHP

Severity Score

Severity Score

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Upgrade to version typo3/cms - 8.7.30,9.5.12

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privilegs Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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