[原文]Opera before 8.51 on Linux and Unix systems allows remote attackers to execute arbitrary code via shell metacharacters (backticks) in a URL that another product provides in a command line argument when launching Opera.
Opera contains a flaw that may allow an attacker to execute arbitrary shell commands on a users client. The issue is triggered due to the improper handling of the command line interface allowing the injection of backtick ("`") shell commands into the URL parameter, and resulting in a loss of integrity.
Upgrade to version 8.51 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.