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CVE-2011-4681
Opera before 11.60 does not properly consider the number of . (dot) characters that conventionally exist in domain names of different…
Medium5.0EPSS 2.0%
- Published
- Updated
- Reserved
- Assigned by
- mitre
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
- EPSS (exploitation in 30 days)
- 2.0% · top 19% of all CVEs (3 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.0.
Weakness
Affected products
n/a
- affected n/a
References (4)
- http://www.opera.com/support/kb/view/1003/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.opera.com/docs/changelogs/mac/1160/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.opera.com/docs/changelogs/windows/1160/ (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://www.opera.com/docs/changelogs/unix/1160/ (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2011-4681)Record last updated .