The child frames in Opera 9 before 9.20 inherit the default charset
from the parent window when a charset is not specified in an HTTP
Content-Type header or META tag, which allows remote attackers to
conduct cross-site scripting (XSS) attacks, as demonstrated using the
UTF-7 character set.
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the CVE-ID was allocated or reserved, and does not
necessarily indicate when this vulnerability was
discovered, shared with the affected vendor, publicly
disclosed, or updated in CVE.
This is an entry on the CVE
list, which standardizes names for security