Information Disclosure in User Authentication
> ### Meta
> * CVSS: `AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C` (4.9)
### Problem
It has been discovered that user credentials have been logged as plaintext when explicitly using log level debug, which is not the _default_ configuration.
### Solution
Update to TYPO3 versions 7.6.52 ELTS, 8.7.41 ELTS, 9.5.28, 10.4.18, 11.3.1 that fix the problem described.
### Credits
Thanks to Ingo Schmitt who reported this issue, and to TYPO3 core & security team member Benni Mack who fixed the issue.
### References
* TYPO3-CORE-SA-2021-012
https://typo3.org/security/advisory/typo3-core-sa-2021-012