WS-2018-0047
Published:May 14, 2026
Updated:May 14, 2026
Authentication Bypass vulnerability in TYPO3 8.2.x before 8.6.0. Due to late TCA initialization the authentication service fails to restrict frontend user according to the validation rules. Therefore it is possible to authenticate restricted (e.g. disabled) frontend users.
Affected Packages
typo3/cms (PHP):
Affected version(s) >=8.2.0 <8.3.0Fix Suggestion:
Update to version 8.3.0typo3/cms (PHP):
Affected version(s) =8.4.1 <8.5.0Fix Suggestion:
Update to version 8.5.0typo3/cms (PHP):
Affected version(s) >=TYPO3_8-2-0 <dev-TYPO3_8-6Fix Suggestion:
Update to version dev-TYPO3_8-6typo3/cms (PHP):
Affected version(s) =8.3.1 <8.4.0Fix Suggestion:
Update to version 8.4.0instituteweb/typo3-cms (PHP):
Affected version(s) >=8.2.0 <8.6.1Fix Suggestion:
Update to version 8.6.1typo3/cms (PHP):
Affected version(s) =8.6.0 <8.6.1Fix Suggestion:
Update to version 8.6.1Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE