Breaking: #73461 - Import module disabled for non admin users

See Issue #73461

Description

The import module of extension "impexp" has been disabled for non-admin users by default.

Impact

For non-admin users who need that functionality, the userTsConfig option options.impexp.enableImportForNonAdminUser = 1 must be set. This can have a negative security impact to the TYPO3 instance in core versions 7.6 and 6.2 and should only be enabled for "trustworthy" backend users in general.

Affected Installations

Installations with non-admin users making active use of the import / export module

Migration

Set userTsConfig option options.impexp.enableImportForNonAdminUser = 1 to restore the old behavior.