{"id":"CVE-2011-4593","aliases":["EUVD-2011-4518","GHSA-hgw3-h5hf-vjv2"],"status":"published","title":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle...","description":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle user/action_redir group messages, which allows remote authenticated users to discover e-mail addresses by visiting the messaging interface.","severity":{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01674,"percentile":0.77007,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2012-07-20T10:00:00Z","modified":"2026-06-16T23:35:06Z","products":[{"vendor":"moodle","product":"moodle"}],"references":[{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=761248","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://git.moodle.org/gw?p=moodle.git%3Ba=commit%3Bh=e94113a859015a4a80b9397957b8fc4044e2951f","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://moodle.org/mod/forum/discuss.php?d=191762","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4593"},{"url":"http://git.moodle.org/gw?p=moodle.git;a=commit;h=e94113a859015a4a80b9397957b8fc4044e2951f"},{"url":"https://github.com/advisories/GHSA-hgw3-h5hf-vjv2"}],"sources":{"cve":[{"id":"CVE-2011-4593","description":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle user/action_redir group messages, which allows remote authenticated users to discover e-mail addresses by visiting the messaging interface.","status":"published","published":"2012-07-20T10:00:00Z","modified":"2024-08-07T00:09:19.425Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4518","description":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle user/action_redir group messages, which allows remote authenticated users to discover e-mail addresses by visiting the messaging interface.","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-hgw3-h5hf-vjv2","title":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle...","description":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle user/action_redir group messages, which allows remote authenticated users to discover e-mail addresses by visiting the messaging interface.","status":"published","published":"2022-05-13T01:13:12Z","modified":"2023-02-13T03:30:56Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:54:05.992759Z"}],"nvd":[{"id":"CVE-2011-4593","description":"Moodle 1.9.x before 1.9.15, 2.0.x before 2.0.6, and 2.1.x before 2.1.3 does not properly handle user/action_redir group messages, which allows remote authenticated users to discover e-mail addresses by visiting the messaging interface.","status":"published","published":"2012-07-20T10:40:36.313Z","modified":"2026-06-16T23:35:06.45Z","cvss":[{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:02:12.272092Z"}]}}