{"id":"CVE-2011-4582","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-4582","generatedAt":"2026-10-27T22:04:09.767Z","title":"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.","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.","published":"2012-07-20T10:40:36.000Z","lastModified":"2026-06-16T23:35:05.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":4.9,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:S/C:P/I:P/A:N"},"cwe":["CWE-20"],"affected":["moodle/moodle"],"epss":{"score":0.01188,"percentile":0.67682,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (1.19%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-28720&sr=1","tags":["Patch"],"source":"secalert@redhat.com"},{"url":"http://moodle.org/mod/forum/discuss.php?d=191748","tags":["Patch","Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=761248","source":"secalert@redhat.com"},{"url":"http://git.moodle.org/gw?p=moodle.git&a=search&h=HEAD&st=commit&s=MDL-28720&sr=1","tags":["Patch"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://moodle.org/mod/forum/discuss.php?d=191748","tags":["Patch","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=761248","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4582","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}