{"id":"CVE-2009-3266","aliases":["EUVD-2009-3249","GHSA-9f37-2v5p-xv7g"],"status":"published","title":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows...","description":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as \"scripted content.\"","severity":{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.0268,"percentile":0.85923,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2009-09-18T22:00:00Z","modified":"2026-06-16T23:11:16Z","products":[{"vendor":"opera","product":"opera_browser"}],"references":[{"url":"http://www.opera.com/support/kb/view/939/","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2009/3073","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/archive/1/506517/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://archives.neohapsis.com/archives/bugtraq/2009-10/0289.html","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"http://securethoughts.com/2009/10/hijacking-operas-native-page-using-malicious-rss-payloads/","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.osvdb.org/59358","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"http://www.opera.com/docs/changelogs/unix/1001/","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://secunia.com/advisories/37182","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/36850","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more/","tags":["x_refsource_MISC","x_transferred","Exploit"]},{"url":"http://www.securityfocus.com/bid/36418","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/54021","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6314","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.opera.com/docs/changelogs/mac/1001/","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"http://www.opera.com/docs/changelogs/windows/1001/","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-3266"},{"url":"http://securethoughts.com/2009/09/exploiting-chrome-and-operas-inbuilt-atomrss-reader-with-script-execution-and-more"},{"url":"http://securethoughts.com/2009/10/hijacking-operas-native-page-using-malicious-rss-payloads"},{"url":"http://www.opera.com/docs/changelogs/mac/1001"},{"url":"http://www.opera.com/docs/changelogs/unix/1001"},{"url":"http://www.opera.com/docs/changelogs/windows/1001"},{"url":"http://www.opera.com/support/kb/view/939"},{"url":"https://github.com/advisories/GHSA-9f37-2v5p-xv7g"}],"sources":{"cve":[{"id":"CVE-2009-3266","description":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as \"scripted content.\"","status":"published","published":"2009-09-18T22:00:00Z","modified":"2024-08-07T06:22:24.457Z","updated_at":"2026-11-02T14:33:23.749891Z"}],"euvd":[{"id":"EUVD-2009-3249","description":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as \"scripted content.\"","status":"published","published":"2009-09-18T22:00:00Z","modified":"2024-08-07T06:22:24Z","updated_at":"2026-11-03T01:39:14.567966Z"}],"ghsa":[{"id":"GHSA-9f37-2v5p-xv7g","title":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows...","description":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as \"scripted content.\"","status":"published","published":"2022-05-02T03:43:28Z","modified":"2025-04-09T04:15:41Z","cwes":["CWE-79"],"updated_at":"2026-11-02T15:01:01.075702Z"}],"nvd":[{"id":"CVE-2009-3266","description":"Opera before 10.01 does not properly restrict HTML in a (1) RSS or (2) Atom feed, which allows remote attackers to conduct cross-site scripting (XSS) attacks, and conduct cross-zone scripting attacks involving the Feed Subscription Page to read feeds or create feed subscriptions, via a crafted feed, related to the rendering of the application/rss+xml content type as \"scripted content.\"","status":"published","published":"2009-09-18T22:30:00.64Z","modified":"2026-06-16T23:11:16.05Z","cvss":[{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:01:36.596719Z"}]}}