What’s Vulnerable › Vulnerabilities

CVE-2011-4682

• Severity: medium (CVSS 6.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-12-07 · updated 2026-06-16
• Weakness: CWE-264

Description

The JavaScript engine in Opera before 11.60 does not properly implement the in operator, which allows remote attackers to bypass the Same Origin Policy via vectors related to variables on different web sites.

Affected products

• Opera Browser: through 11.60; 5.0, 5.0-beta2, 5.0-beta3, 5.0-beta4, 5.0-beta5, 5.0-beta6 (+116)

References

• http://www.opera.com/docs/changelogs/mac/1160/
• http://www.opera.com/docs/changelogs/unix/1160/
• http://www.opera.com/docs/changelogs/windows/1160/
• http://www.opera.com/support/kb/view/1005/
• http://www.opera.com/docs/changelogs/mac/1160/
• http://www.opera.com/docs/changelogs/unix/1160/
• http://www.opera.com/docs/changelogs/windows/1160/
• http://www.opera.com/support/kb/view/1005/

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