Opera before 9.52 does not properly restrict the ability of a framed web page to change the address associated with a different frame, which allows remote attackers to trigger the display of an arbitrary address in a frame via unspecified use of web script.
https://exchange.xforce.ibmcloud.com/vulnerabilities/44549
https://bugs.gentoo.org/show_bug.cgi?id=235298
http://www.vupen.com/english/advisories/2008/2416
http://www.securitytracker.com/id?1020718
http://www.securityfocus.com/bid/30768
http://www.opera.com/support/search/view/893/
http://www.opera.com/docs/changelogs/windows/952/
http://www.opera.com/docs/changelogs/solaris/952/
http://www.opera.com/docs/changelogs/mac/952/
http://www.opera.com/docs/changelogs/linux/952/
http://www.opera.com/docs/changelogs/freebsd/952/
http://www.openwall.com/lists/oss-security/2008/09/24/4
http://www.openwall.com/lists/oss-security/2008/09/19/2
http://security.gentoo.org/glsa/glsa-200811-01.xml