WS-2018-0218 | Mend Vulnerability Database

Vulnerability DatabaseWS-2018-0218

WS-2018-0218

Published:May 14, 2026

Updated:May 14, 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

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-3 <TYPO3_8-3-1

Fix Suggestion:

Update to version TYPO3_8-3-1

typo3/cms (PHP):

Affected version(s) =v8.7.14 <8.7.15

Fix Suggestion:

Update to version 8.7.15

typo3/cms (PHP):

Affected version(s) =v7.6.28 <7.6.29

Fix Suggestion:

Update to version 7.6.29

instituteweb/typo3-cms (PHP):

Affected version(s) >=7.6.4 <=8.7.10

Fix Suggestion:

Update to version no_fix

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-0 <TYPO3_8-0-1

Fix Suggestion:

Update to version TYPO3_8-0-1

typo3/cms (PHP):

Affected version(s) =8.3.1 <8.4.0

Fix Suggestion:

Update to version 8.4.0

typo3/cms (PHP):

Affected version(s) =v8.7.18 <8.7.19

Fix Suggestion:

Update to version 8.7.19

typo3/cms-backend (PHP):

Affected version(s) =9.3.x-dev <v9.3.0

Fix Suggestion:

Update to version v9.3.0

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-4 <TYPO3_8-4-1

Fix Suggestion:

Update to version TYPO3_8-4-1

typo3/cms (PHP):

Affected version(s) >=v9.2.1 <v9.3.0

Fix Suggestion:

Update to version v9.3.0

typo3/cms (PHP):

Affected version(s) =v8.7.6 <8.7.7

Fix Suggestion:

Update to version 8.7.7

typo3/cms (PHP):

Affected version(s) =v8.7.15 <8.7.16

Fix Suggestion:

Update to version 8.7.16

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-6 <TYPO3_8-6-1

Fix Suggestion:

Update to version TYPO3_8-6-1

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-1 <TYPO3_8-1-1

Fix Suggestion:

Update to version TYPO3_8-1-1

typo3/cms (PHP):

Affected version(s) =7.6.15 <7.6.16

Fix Suggestion:

Update to version 7.6.16

typo3/cms (PHP):

Affected version(s) >=7.6.17 <7.6.19

Fix Suggestion:

Update to version 7.6.19

typo3/cms (PHP):

Affected version(s) =v8.7.4 <8.7.5

Fix Suggestion:

Update to version 8.7.5

typo3/cms (PHP):

Affected version(s) =7.6.10 <7.6.11

Fix Suggestion:

Update to version 7.6.11

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-2 <TYPO3_8-2-1

Fix Suggestion:

Update to version TYPO3_8-2-1

typo3/cms (PHP):

Affected version(s) =8.4.1 <8.5.0

Fix Suggestion:

Update to version 8.5.0

typo3/cms (PHP):

Affected version(s) =v8.7.7 <8.7.8

Fix Suggestion:

Update to version 8.7.8

typo3/cms (PHP):

Affected version(s) =v7.6.21 <7.6.22

Fix Suggestion:

Update to version 7.6.22

typo3/cms (PHP):

Affected version(s) =v8.7.3 <8.7.4

Fix Suggestion:

Update to version 8.7.4

typo3/cms (PHP):

Affected version(s) =8.6.0 <8.6.1

Fix Suggestion:

Update to version 8.6.1

typo3/cms (PHP):

Affected version(s) =8.7.1 <8.7.2

Fix Suggestion:

Update to version 8.7.2

typo3/cms (PHP):

Affected version(s) >=v9.1.0 <v9.2.0

Fix Suggestion:

Update to version v9.2.0

typo3/cms (PHP):

Affected version(s) =dev-TYPO3_8-5 <TYPO3_8-5-1

Fix Suggestion:

Update to version TYPO3_8-5-1

typo3/cms (PHP):

Affected version(s) =v9.5.1 <v9.5.2

Fix Suggestion:

Update to version v9.5.2

typo3/cms-backend (PHP):

Affected version(s) =9.2.x-dev <v9.2.0

Fix Suggestion:

Update to version v9.2.0

typo3/cms (PHP):

Affected version(s) =v7.6.24 <7.6.25

Fix Suggestion:

Update to version 7.6.25

typo3/cms (PHP):

Affected version(s) >=8.2.0 <8.3.0

Fix Suggestion:

Update to version 8.3.0

typo3/cms (PHP):

Affected version(s) =v7.6.23 <7.6.24

Fix Suggestion:

Update to version 7.6.24

typo3/cms (PHP):

Affected version(s) =7.6.12 <7.6.13

Fix Suggestion:

Update to version 7.6.13

instituteweb/typo3-cms (PHP):

Affected version(s) >=dev-TYPO3_7 <6.2.19

Fix Suggestion:

Update to version 6.2.19

Related Resources (3)

https://typo3.org/security/advisory/typo3-core-sa-2018-006/

https://typo3.org/security/advisory/typo3-core-sa-2018-007/

https://github.com/TYPO3/TYPO3.CMS/commit/02cd5c97228cba477d16c68e28309ce25c433ce9

Do you need more information?

CVSS 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