The openTempFile function in goo/gfile.cc in Xpdf and Poppler 0.24.3 and earlier, when running on a system other than Unix, allows local users to overwrite arbitrary files via a symlink attack on temporary files with predictable names.
http://seclists.org/oss-sec/2013/q4/183
http://seclists.org/oss-sec/2013/q4/181