GNOME Yelp

Format string vulnerability in the window_error function in yelp-window.c in yelp in Gnome after 2.19.90 and before 2.24 allows remote attackers to execute arbitrary code via format string specifiers in an invalid URI on the command line, as demonstrated by use of yelp within (1) man or (2) ghelp URI handlers in Firefox, Evolution, and unspecified other programs.

Yelp: arbitrary file read

Yelp: yelp-xsl: overly permissive content security policy in yelp allows host file disclosure from flatpak applications