Untrusted search path vulnerability in QtWeb Browser 3.3 build 043 allows local users to gain privileges via a Trojan horse wintab32.dll file in the current working directory, as demonstrated by a directory that contains a .html, .htm, or .mhtml file. NOTE: some of these details are obtained from third party information.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2010-5206
http://secunia.com/advisories/41201
http://archives.neohapsis.com/archives/fulldisclosure/2010-08/0386.html