{"cve":"CVE-2011-4682","nvd":{"published":"2011-12-07T19:55:02.567","modified":"2026-06-16T23:35:13.937","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-264"],"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/"],"products":["opera:opera_browser"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2011-4682","score":0.01978,"percentile":0.80513,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}