VULNERABILITY INTELLIGENCE
CVE-2011-4681
CVSS score5 MEDIUM
EPSS probability1.98%
CISA KEVNot currently listed
Published2011-12-07
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:N/I:P/A:N
Description
Opera before 11.60 does not properly consider the number of . (dot) characters that conventionally exist in domain names of different top-level domains, which allows remote attackers to bypass the Same Origin Policy by leveraging access to a different domain name in the same top-level domain, as demonstrated by the .no or .uk domain.