{"id":"CVE-2011-4294","url":"https://www.cyber-defence.io/tools/cve/CVE-2011-4294","generatedAt":"2026-10-27T22:04:20.287Z","title":"The error-message functionality in Moodle 1.9.x before 1.9.13, 2.0.x before 2.0.4, and 2.1.x before 2.1.1 does not ensure that a continuation link refers to an http or https URL for the local Moodle instance, which might allow attackers to trick users…","description":"The error-message functionality in Moodle 1.9.x before 1.9.13, 2.0.x before 2.0.4, and 2.1.x before 2.1.1 does not ensure that a continuation link refers to an http or https URL for the local Moodle instance, which might allow attackers to trick users into visiting arbitrary web sites via unspecified vectors.","published":"2012-07-16T10:28:37.000Z","lastModified":"2026-06-16T23:34:43.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":5.8,"severity":"MEDIUM","vector":"AV:N/AC:M/Au:N/C:N/I:P/A:P"},"cwe":["CWE-20"],"affected":["moodle/moodle"],"epss":{"score":0.01541,"percentile":0.74759,"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 (1.54%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=8f9f666c902cb30ef6f519353f38c45a29fdf4a6","source":"secalert@redhat.com"},{"url":"http://moodle.org/mod/forum/discuss.php?d=182737","tags":["Vendor Advisory"],"source":"secalert@redhat.com"},{"url":"http://openwall.com/lists/oss-security/2011/11/14/1","source":"secalert@redhat.com"},{"url":"http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=8f9f666c902cb30ef6f519353f38c45a29fdf4a6","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://moodle.org/mod/forum/discuss.php?d=182737","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://openwall.com/lists/oss-security/2011/11/14/1","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2011-4294","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."}