WS-2018-0055 | Mend Vulnerability Database

Vulnerability DatabaseWS-2018-0055

WS-2018-0055

Published:May 14, 2026

Updated:May 14, 2026

Authentication Bypass vulnerability in TYPO3 6.2.x before 6.2.20, 7.6.x before 7.6.5 and 8.0.0. The default authentication service misses to invalidate empty strings as password. Therefore it is possible to authenticate backend and frontend users without password set in the database.

Affected Packages

typo3/cms (PHP):

Affected version(s) >=TYPO3_7-6-1 <TYPO3_7-6-5

Fix Suggestion:

Update to version TYPO3_7-6-5

typo3/cms (PHP):

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

Fix Suggestion:

Update to version dev-TYPO3_8-0

typo3/cms (PHP):

Affected version(s) >=6.2.11 <6.2.13

Fix Suggestion:

Update to version 6.2.13

typo3/cms (PHP):

Affected version(s) =TYPO3_7-6-0 <dev-TYPO3_7-6

Fix Suggestion:

Update to version dev-TYPO3_7-6

typo3/cms (PHP):

Affected version(s) >=TYPO3_6-2-0alpha3 <TYPO3_7-0-0

Fix Suggestion:

Update to version TYPO3_7-0-0

typo3/cms (PHP):

Affected version(s) >=6.2.21 <6.2.24

Fix Suggestion:

Update to version 6.2.24

instituteweb/typo3-cms (PHP):

Affected version(s) =dev-TYPO3_6-2 <dev-TYPO3_7

Fix Suggestion:

Update to version dev-TYPO3_7

typo3/cms (PHP):

Affected version(s) =6.2.9 <6.2.10-rc1

Fix Suggestion:

Update to version 6.2.10-rc1

instituteweb/typo3-cms (PHP):

Affected version(s) >=6.2.19 <7.6.5

Fix Suggestion:

Update to version 7.6.5

typo3/cms (PHP):

Affected version(s) >=6.2.26 <6.2.28

Fix Suggestion:

Update to version 6.2.28

typo3/cms (PHP):

Affected version(s) =6.2.1 <6.2.2

Fix Suggestion:

Update to version 6.2.2

typo3/cms (PHP):

Affected version(s) =6.2.15 <6.2.16

Fix Suggestion:

Update to version 6.2.16

typo3/cms (PHP):

Affected version(s) =6.2.18 <6.2.19

Fix Suggestion:

Update to version 6.2.19

typo3/cms (PHP):

Affected version(s) >=6.2.5 <6.2.8

Fix Suggestion:

Update to version 6.2.8

instituteweb/typo3-cms (PHP):

Affected version(s) =8.0.0 <8.0.1

Fix Suggestion:

Update to version 8.0.1

Related Resources (2)

https://typo3.org/teams/security/security-bulletins/typo3-core/typo3-core-sa-2016-011

https://github.com/TYPO3/TYPO3.CMS/commit/b077aafd95aea5bc14a77d3b51b3e5d3a097765e

Do you need more information?

CVSS v4

Base Score:

6.9

Attack Vector

NETWORK

Attack Complexity

LOW

Attack Requirements

NONE

Privileges Required

NONE

User Interaction

NONE

Vulnerable System Confidentiality

LOW

Vulnerable System Integrity

LOW

Vulnerable System Availability

NONE

Subsequent System Confidentiality

NONE

Subsequent System Integrity

NONE

Subsequent System Availability

NONE

CVSS v3

Base Score:

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

LOW

Integrity

LOW

Availability

NONE