Problem
When performing a database query involving multiple tables through the database abstraction layer (DBAL), frontend user permissions are only applied via FrontendGroupRestriction
to the last table. As a result, data from additional tables included in the same query may be unintentionally exposed to unauthorized users.
Solution
Update to TYPO3 versions 9.5.51 ELTS, 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, 13.4.12 LTS that fix the problem described.
Credits
Thanks to Christian Futterlieb for reporting this issue, and to TYPO3 security team member Elias Häußler for fixing it.
References
Problem
When performing a database query involving multiple tables through the database abstraction layer (DBAL), frontend user permissions are only applied via
FrontendGroupRestriction
to the last table. As a result, data from additional tables included in the same query may be unintentionally exposed to unauthorized users.Solution
Update to TYPO3 versions 9.5.51 ELTS, 10.4.50 ELTS, 11.5.44 ELTS, 12.4.31 LTS, 13.4.12 LTS that fix the problem described.
Credits
Thanks to Christian Futterlieb for reporting this issue, and to TYPO3 security team member Elias Häußler for fixing it.
References