{"id":"CVE-2009-4100","aliases":["EUVD-2009-4071","GHSA-f998-p46x-w444"],"status":"published","title":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges,...","description":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via DOM event handlers such as onload.","severity":{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03871,"percentile":0.90271,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20"],"published":"2009-11-28T11:00:00Z","modified":"2026-06-16T23:13:02Z","products":[{"vendor":"yoono","product":"yoono"}],"references":[{"url":"http://www.securityfocus.com/bid/37123","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2009/3326","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://addons.mozilla.org/en-US/firefox/addons/versions/1833#version-6.1.1","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/54417","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://www.net-security.org/secworld.php?id=8527","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://secunia.com/advisories/37468","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4100"},{"url":"https://github.com/advisories/GHSA-f998-p46x-w444"}],"sources":{"cve":[{"id":"CVE-2009-4100","description":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via DOM event handlers such as onload.","status":"published","published":"2009-11-28T11:00:00Z","modified":"2024-08-07T06:54:10.101Z","updated_at":"2026-11-02T14:33:24.451733Z"}],"euvd":[{"id":"EUVD-2009-4071","description":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via DOM event handlers such as onload.","status":"published","published":"2009-11-28T11:00:00Z","modified":"2024-08-07T06:54:10Z","updated_at":"2026-11-03T01:39:10.681785Z"}],"ghsa":[{"id":"GHSA-f998-p46x-w444","title":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges,...","description":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via DOM event handlers such as onload.","status":"published","published":"2022-05-02T03:51:34Z","modified":"2023-01-31T05:08:33Z","cwes":["CWE-20"],"updated_at":"2026-11-02T14:49:25.206701Z"}],"nvd":[{"id":"CVE-2009-4100","description":"Yoono extension before 6.1.1 for Firefox performs certain operations with chrome privileges, which allows user-assisted remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via DOM event handlers such as onload.","status":"published","published":"2009-11-29T13:08:29.39Z","modified":"2026-06-16T23:13:02.287Z","cvss":[{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:01:37.939838Z"}]}}