Opera before 9.61 does not properly block scripts during preview of a news feed, which allows remote attackers to create arbitrary new feed subscriptions and read the contents of arbitrary feeds.
lists.opensuse.org/opensuse-security-announce/2008-10/msg00009.html
secunia.com/advisories/32299
secunia.com/advisories/32394
secunia.com/advisories/32538
security.gentoo.org/glsa/glsa-200811-01.xml
www.openwall.com/lists/oss-security/2008/10/21/6
www.openwall.com/lists/oss-security/2008/10/22/5
www.opera.com/docs/changelogs/freebsd/961/
www.opera.com/docs/changelogs/linux/961/
www.opera.com/docs/changelogs/mac/961/
www.opera.com/docs/changelogs/solaris/961/
www.opera.com/docs/changelogs/windows/961/
www.opera.com/support/search/view/905/
www.securityfocus.com/bid/31842
www.vupen.com/english/advisories/2008/2873
exchange.xforce.ibmcloud.com/vulnerabilities/46005