Certain constructs are not escaped correctly by Opera's History Search results. These can be used to inject scripts into the page, which can then be used to modify configuration settings and execute arbitrary commands. Affects Opera versions between 9.50 and 9.61.
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Gentoo Linux Security Advisory GLSA 200811-01 - Multiple vulnerabilities have been discovered in Opera, allowing for the execution of arbitrary code. Versions below 9.62 are affected.
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