{"id":"CVE-2011-4305","aliases":["DSA-2338-1","EUVD-2011-4240","GHSA-6wq9-m5r8-4gq4"],"status":"published","title":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a...","description":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.","severity":{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01919,"percentile":0.80022,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2011-11-07T00:00:00Z","modified":"2026-06-16T23:34:44Z","affected":[{"source":"osv","ecosystem":"Debian:6.0","package":"moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.9.dfsg2-2.1+squeeze2"}]}],"versions":["1.9.9.dfsg2-2.1","1.9.9.dfsg2-2.1+squeeze1"],"bundled":5}],"products":[{"vendor":"moodle","product":"moodle"}],"references":[{"url":"http://moodle.org/mod/forum/discuss.php?d=188318","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=97f258fabb3ebfa7acc7c02cb59de92b01710f99","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=747444","tags":["x_refsource_CONFIRM","x_transferred","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4305"},{"url":"http://git.moodle.org/gw?p=moodle.git;a=commit;h=97f258fabb3ebfa7acc7c02cb59de92b01710f99"},{"url":"https://github.com/advisories/GHSA-6wq9-m5r8-4gq4"}],"sources":{"cve":[{"id":"CVE-2011-4305","description":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.","status":"published","published":"2012-07-11T10:00:00Z","modified":"2024-08-07T00:01:51.534Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4240","description":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.","status":"published","published":"2012-07-11T10:00:00Z","modified":"2024-08-07T00:01:51Z","updated_at":"2026-11-03T01:39:49.441333Z"}],"ghsa":[{"id":"GHSA-6wq9-m5r8-4gq4","title":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a...","description":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.","status":"published","published":"2022-05-13T01:13:12Z","modified":"2023-02-20T05:05:16Z","updated_at":"2026-11-02T14:54:10.77374Z"}],"nvd":[{"id":"CVE-2011-4305","description":"message/refresh.php in Moodle 1.9.x before 1.9.14 allows remote authenticated users to cause a denial of service (infinite request loop) via a URL that specifies a zero wait time for message refreshing.","status":"published","published":"2012-07-11T10:26:11.097Z","modified":"2026-06-16T23:34:44.3Z","cvss":[{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:02:12.272092Z"}],"osv":[{"id":"DSA-2338-1","title":"moodle - several","status":"published","published":"2011-11-07T00:00:00Z","modified":"2026-03-09T01:22:18.007046Z","updated_at":"2026-11-02T15:46:15.108335Z"}]}}