lib/Horde/Mime/Viewer/Ooo.php in Horde Mime_Viewer before 2.2.4 allows XSS via an OpenOffice document, leading to account takeover in Horde Groupware Webmail Edition. This occurs after XSLT rendering.
https://lists.debian.org/debian-lts-announce/2022/08/msg00021.html
https://lists.debian.org/debian-lts-announce/2022/06/msg00007.html
https://github.com/horde/Mime_Viewer/commit/02b46cec1a7e8f1a6835b628850cd56b85963bb5
https://blog.sonarsource.com/horde-webmail-account-takeover-via-email/