{"id":"CVE-2011-4582","aliases":["EUVD-2022-4334","GHSA-jcrj-x36p-h9f6"],"status":"published","title":"Moodle Open Redirect in Calendar Set Page","description":"Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.","severity":{"version":"2.0","score":4.9,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01188,"percentile":0.68099,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-20","CWE-601"],"published":"2012-07-20T10:00:00Z","modified":"2026-06-16T23:35:05Z","fixes":[{"ecosystem":"Packagist","package":"moodle/moodle","fixed_in":["2.1.3"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.1"},{"fixed":"2.1.3"}]}]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.1"},{"fixed":"2.1.3"}]}]}],"products":[{"vendor":"moodle","product":"moodle"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=761248","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-28720\u0026sr=1","tags":["x_refsource_CONFIRM","x_transferred","Patch","web"]},{"url":"http://moodle.org/mod/forum/discuss.php?d=191748","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4582","tags":["advisory"]},{"url":"https://github.com/moodle/moodle/commit/0d2672748c00181d9cdae2aabbab916cbd64c47d","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/21e7d4c5fc9cc5df54c9c7d82190f1339d163a9e","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/7f422374c101dcb0affdd5127b855671af4f3748","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/eb59a448f7879d69b21fcde7f1fcddd69655e045","tags":["web"]},{"url":"https://github.com/advisories/GHSA-jcrj-x36p-h9f6"},{"url":"https://github.com/moodle/moodle","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2011-4582","description":"Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.","status":"published","published":"2012-07-20T10:00:00Z","modified":"2024-08-07T00:09:19.348Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2022-4334","description":"Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.","status":"published","published":"2012-07-20T10:00:00Z","modified":"2024-08-07T00:09:19Z","updated_at":"2026-11-03T01:39:48.540824Z"}],"ghsa":[{"id":"GHSA-jcrj-x36p-h9f6","title":"Moodle Open Redirect in Calendar Set Page","description":"Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.","status":"published","published":"2022-05-13T01:13:15Z","modified":"2024-01-17T18:26:37Z","cwes":["CWE-601"],"updated_at":"2026-11-02T14:37:31.550603Z"}],"nvd":[{"id":"CVE-2011-4582","description":"Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.","status":"published","published":"2012-07-20T10:40:35.72Z","modified":"2026-06-16T23:35:05.3Z","cvss":[{"version":"2.0","score":4.9,"vector":"AV:N/AC:M/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-20"],"updated_at":"2026-11-02T14:02:12.272092Z"}],"osv":[{"id":"GHSA-jcrj-x36p-h9f6","title":"Moodle Open Redirect in Calendar Set Page","description":"Open redirect vulnerability in the Calendar set page in Moodle 2.1.x before 2.1.3 allows remote authenticated users to redirect users to arbitrary web sites and conduct phishing attacks via a redirection URL.","status":"published","published":"2022-05-13T01:13:15Z","modified":"2024-01-17T18:41:36.746504Z","cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:50.336262Z"}]}}