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typo3TYPO3 AssociationTYPO3-PSA-2020-001
HistoryJul 28, 2020 - 12:00 a.m.

Critical vulnerability in legacy versions of TYPO3 CMS

2020-07-2800:00:00
TYPO3 Association
typo3.org
22

0.115 Low

EPSS

Percentile

95.3%

It has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. This allows to inject arbitrary data having a valid cryptographic message authentication code (HMAC-SHA1) and can lead to various attack chains as described below.

CPENameOperatorVersion
typo3 cmsge6.2.16
typo3 cmsle6.2.51