phpMyAdmin before 4.9.2 does not escape certain Git information, related to libraries/classes/Display/GitRevision.php and libraries/classes/Footer.php.
github.com/phpmyadmin/phpmyadmin/commit/1119de642b136d20e810bb20f545069a01dd7cc9
github.com/phpmyadmin/phpmyadmin/compare/RELEASE_4_9_1...RELEASE_4_9_2
lists.debian.org/debian-lts-announce/2019/12/msg00006.html
lists.debian.org/debian-lts-announce/2020/10/msg00024.html
www.phpmyadmin.net/news/2019/11/22/phpmyadmin-492-released/