LutelWall 0.97 and earlier allows local users to overwrite arbitrary files via a symlink attack on a temporary file created by a system call to wget.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-1881
http://www.zataz.net/adviso/lutelwall-05222005.txt
http://www.securityfocus.com/bid/13863
http://securitytracker.com/id?1014112
http://security.gentoo.org/glsa/glsa-200506-10.xml
http://secunia.com/advisories/15665
http://secunia.com/advisories/15647
http://lists.grok.org.uk/pipermail/full-disclosure/2005-June/034424.html