Mahara 21.04 before 21.04.7, 21.10 before 21.10.5, 22.04 before 22.04.3, and 22.10 before 22.10.0 potentially allow a PDF export to trigger a remote shell if the site is running on Ubuntu and the flag -dSAFER is not set with Ghostscript.Referenceshttps://bugs.launchpad.net/mahara/+bug/1979575https://mahara.org/interaction/forum/topic.php?id=9198
