WS-2018-0218
Published:May 27, 2026
Updated:May 27, 2026
TYPO3 7.1.0 through 7.6.31, 8.5.0 through 8.7.20 and 9.0.0 through 9.5.1, fails to properly encode user input, notifications shown in modal windows in the TYPO3 backend are vulnerable to cross-site scripting. A valid backend user account is needed in order to exploit this vulnerability.
Affected Packages
instituteweb/typo3-cms (PHP):
Affected version(s) >=7.6.4 <=8.7.10Fix Suggestion:
Update to version no_fixinstituteweb/typo3-cms (PHP):
Affected version(s) >=dev-TYPO3_7 <6.2.19Fix Suggestion:
Update to version 6.2.19typo3/cms-backend (PHP):
Affected version(s) =9.2.x-dev <v9.2.0Fix Suggestion:
Update to version v9.2.0typo3/cms-backend (PHP):
Affected version(s) =9.3.x-dev <v9.3.0Fix Suggestion:
Update to version v9.3.0Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
HIGH
User Interaction
PASSIVE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
LOW
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE