An attacker can request an account password reset and then gain access to the account using a specially crafted request.
Apply https://github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374 and https://github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9 to your installation manually if you are unable to upgrade.
[Update 2022-01-20] Shortened patch instructions can be found here.
We recommend the following steps to make sure your server stays secure:
Bugs found as part of Solar Security CMS Research. Credits to:
β’ Andrey Basarygin
β’ Andrey Guzei
β’ Mikhail Khramenkov
β’ Alexander Sidukov
β’ Maxim Teplykh
If you have any questions or comments about this advisory: