WS-2018-0054
Published:May 14, 2026
Updated:May 14, 2026
Insecure Unserialize vulnerability in TYPO3 6.2.x before 6.2.26, 7.6.x before 7.6.10 and 8.0.x before 8.2.1. Failing to properly validate incoming import data, the Import/Export component is susceptible to insecure unserialize. To exploit this vulnerability a valid backend user account is needed.
Affected Packages
typo3/cms (PHP):
Affected version(s) =8.2.0 <8.2.1Fix Suggestion:
Update to version 8.2.1typo3/cms (PHP):
Affected version(s) =6.2.18 <6.2.19Fix Suggestion:
Update to version 6.2.19typo3/cms (PHP):
Affected version(s) >=6.2.21 <6.2.24Fix Suggestion:
Update to version 6.2.24typo3/cms (PHP):
Affected version(s) >=TYPO3_7-6-1 <TYPO3_7-6-10Fix Suggestion:
Update to version TYPO3_7-6-10typo3/cms (PHP):
Affected version(s) =6.2.15 <6.2.16Fix Suggestion:
Update to version 6.2.16typo3/cms (PHP):
Affected version(s) >=TYPO3_6-2-1 <TYPO3_6-2-26Fix Suggestion:
Update to version TYPO3_6-2-26typo3/cms (PHP):
Affected version(s) >=6.2.5 <6.2.8Fix Suggestion:
Update to version 6.2.8typo3/cms (PHP):
Affected version(s) =6.2.1 <6.2.2Fix Suggestion:
Update to version 6.2.2typo3/cms (PHP):
Affected version(s) >=TYPO3_8-0-0 <dev-TYPO3_8-2Fix Suggestion:
Update to version dev-TYPO3_8-2instituteweb/typo3-cms (PHP):
Affected version(s) >=8.0.0 <8.2.1Fix Suggestion:
Update to version 8.2.1typo3/cms (PHP):
Affected version(s) >=6.2.11 <6.2.13Fix Suggestion:
Update to version 6.2.13typo3/cms (PHP):
Affected version(s) =TYPO3_7-6-0 <dev-TYPO3_7-6Fix Suggestion:
Update to version dev-TYPO3_7-6instituteweb/typo3-cms (PHP):
Affected version(s) >=6.2.19 <6.2.26Fix Suggestion:
Update to version 6.2.26typo3/cms (PHP):
Affected version(s) >=TYPO3_6-2-0beta7 <dev-TYPO3_6-2Fix Suggestion:
Update to version dev-TYPO3_6-2instituteweb/typo3-cms (PHP):
Affected version(s) >=7.6.4 <7.6.10Fix Suggestion:
Update to version 7.6.10typo3/cms (PHP):
Affected version(s) =6.2.9 <6.2.10-rc1Fix Suggestion:
Update to version 6.2.10-rc1Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
9
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
HIGH
Subsequent System Availability
HIGH
CVSS v3
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH