CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS
Percentile
88.0%
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.