Contao's remember-me tokens will not be cleared after a password change

Vulnerability Description

Contao is an open source content management system. Prior to version 4.13.40, when a frontend member changes their password in the personal data or the password lost module, the corresponding remember-me tokens are not removed. If someone compromises an account and is able to get a remember-me token, changing the password would not be enough to reclaim control over the account. Version 4.13.40 contains a fix for the issue. As a workaround, disable "Allow auto login" in the login module.

References

• https://github.com/contao/contao/security/advisories/GHSA-r4r6-j2j3-7pp5
• https://github.com/contao/contao/commit/3032baa456f607169ffae82a8920354adb338fe9