{"id":"CVE-2012-3557","aliases":["EUVD-2012-3504","GHSA-5866-mfc4-q5hx"],"status":"published","title":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote...","description":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote attackers to perform cross-domain loading of JSON resources and consequently obtain sensitive information via a crafted web site.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0166,"percentile":0.76799,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-264"],"published":"2012-06-14T19:00:00Z","modified":"2026-06-16T23:43:28Z","products":[{"vendor":"opera","product":"opera_browser"}],"references":[{"url":"http://www.opera.com/docs/changelogs/unix/1200/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.opera.com/support/kb/view/1019/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.opera.com/docs/changelogs/mac/1165/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.opera.com/docs/changelogs/mac/1200/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.opera.com/docs/changelogs/windows/1200/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2012-3557"},{"url":"http://www.opera.com/docs/changelogs/mac/1165"},{"url":"http://www.opera.com/docs/changelogs/mac/1200"},{"url":"http://www.opera.com/docs/changelogs/unix/1200"},{"url":"http://www.opera.com/docs/changelogs/windows/1200"},{"url":"http://www.opera.com/support/kb/view/1019"},{"url":"https://github.com/advisories/GHSA-5866-mfc4-q5hx"}],"sources":{"cve":[{"id":"CVE-2012-3557","description":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote attackers to perform cross-domain loading of JSON resources and consequently obtain sensitive information via a crafted web site.","status":"published","published":"2012-06-14T19:00:00Z","modified":"2024-09-16T20:12:47.179Z","updated_at":"2026-11-02T14:34:50.615647Z"}],"euvd":[{"id":"EUVD-2012-3504","description":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote attackers to perform cross-domain loading of JSON resources and consequently obtain sensitive information via a crafted web site.","status":"published","published":"2012-06-14T19:00:00Z","modified":"2024-09-16T20:12:47Z","updated_at":"2026-11-03T00:55:15.889317Z"}],"ghsa":[{"id":"GHSA-5866-mfc4-q5hx","title":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote...","description":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote attackers to perform cross-domain loading of JSON resources and consequently obtain sensitive information via a crafted web site.","status":"published","published":"2022-05-17T05:28:32Z","modified":"2025-04-11T03:59:27Z","updated_at":"2026-11-02T15:01:11.088321Z"}],"nvd":[{"id":"CVE-2012-3557","description":"Opera before 11.65 does not properly restrict the reading of JSON strings, which allows remote attackers to perform cross-domain loading of JSON resources and consequently obtain sensitive information via a crafted web site.","status":"published","published":"2012-06-14T19:55:01.013Z","modified":"2026-06-16T23:43:28.067Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-264"],"updated_at":"2026-11-02T14:02:14.336529Z"}]}}