Xonitic runs on top of the DarkPlaces Engine. When connecting to a server, the client may download and run QuakeC code for the gameplay. The security policies are:
- QC code can't create any symlinks.
-- QC code can read anything below ~/.xonotic/*/ including stuff pointed-to by symlinks (which, as the game can't create any, would have to have been placed by the user). It can't read your private key in ~/.xonotic/*.d0si.
-- QC code can write anything below ~/.xonotic/data including your config.
+- QC code can read anything below ~/.xonotic/*/ including stuff pointed-to by symlinks (which, as the game can't create any, would have to have been placed by the user). It cannot read user's private key in ~/.xonotic/*.d0si.
+- QC code can write anything below ~/.xonotic/data including user's config.
- Paths are properly sanitized according to this policy.
- QC code can send arbitrary data back anywhere (by using the "connect" command).
+Therefore, do not put any files you don't want to expose under ~/.xonotic
+
Reference
---------
divVerent's [answer](http://forums.xonotic.org/showthread.php?tid=5427&pid=71595#pid71595) in the forum
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