It has been discovered that the extension "femanager" (femanager) is susceptible to Broken Access Control.

Problem Description

A missing access check in the InvitationController allows an unauthenticated user with a valid invitation link to set the password of all frontend users. Another missing access check in the InvitationController allows an unauthenticated user to delete all frontend users.

Note, that the issue is only exploitable, if the invitation component of the extension is configured and used on the website.

Solution

Updated versions 5.5.3, 6.3.4 and 7.1.0 are available from the TYPO3 extension manager, packagist and at

https://extensions.typo3.org/extension/download/femanager/5.5.3/zip

https://extensions.typo3.org/extension/download/femanager/6.3.4/zip

https://extensions.typo3.org/extension/download/femanager/7.1.0/zip

Users of the extension are advised to update the extension as soon as possible.

Credits

Thanks to Stefan Busemann for providing updated versions of the extension.

General Advice

Follow the recommendations that are given in the TYPO3 Security Guide. Please subscribe to the typo3-announce mailing list.