{"id":"CVE-2017-12157","aliases":["EUVD-2022-4025","GHSA-gw95-48xq-gqf9","UBUNTU-CVE-2017-12157"],"status":"published","title":"Moodle sensitive information disclosure","description":"In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't access.","severity":{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01097,"percentile":0.65831,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200"],"published":"2017-09-18T04:00:00Z","modified":"2026-10-24T10:30:17Z","fixes":[{"ecosystem":"Packagist","package":"moodle/moodle","fixed_in":["3.3.2","3.2.5","3.1.8"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3.0"},{"last_affected":"3.3.1"},{"fixed":"3.3.2"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.2.0"},{"last_affected":"3.2.4"},{"fixed":"3.2.5"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"3.1.7"},{"fixed":"3.1.8"}]}]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3.0"},{"fixed":"3.3.2"}]}],"versions":["v3.3.0","v3.3.1"]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.2.0"},{"fixed":"3.2.5"}]}],"versions":["v3.2.0","v3.2.1","v3.2.2","v3.2.3","v3.2.4"]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.1.8"}]}],"versions":["v2.3.10","v2.3.11","v2.3.4","v2.3.5","v2.3.6","v2.3.7","v2.3.8","v2.3.9","v2.4.0","v2.4.0-rc1","v2.4.1","v2.4.10","v2.4.11","v2.4.2","v2.4.3","v2.4.4","v2.4.5","v2.4.6","v2.4.7","v2.4.8","v2.4.9","v2.5.0","v2.5.0-beta","v2.5.0-rc1","v2.5.1","v2.5.2","v2.5.3","v2.5.4","v2.5.5","v2.5.6","v2.5.7","v2.5.8","v2.5.9","v2.6.0","v2.6.0-beta","v2.6.0-rc1","v2.6.1","v2.6.10","v2.6.11","v2.6.2","v2.6.3","v2.6.4","v2.6.5","v2.6.6","v2.6.7","v2.6.8","v2.6.9","v2.7.0","v2.7.0-beta","v2.7.0-rc1","v2.7.0-rc2","v2.7.1","v2.7.10","v2.7.11","v2.7.12","v2.7.13","v2.7.14","v2.7.15","v2.7.16","v2.7.17","v2.7.18","v2.7.19","v2.7.2","v2.7.20","v2.7.3","v2.7.4","v2.7.5","v2.7.6","v2.7.7","v2.7.8","v2.7.9","v2.8.0","v2.8.0-beta","v2.8.0-rc1","v2.8.0-rc2","v2.8.1","v2.8.10","v2.8.11","v2.8.12","v2.8.2","v2.8.3","v2.8.4","v2.8.5","v2.8.6","v2.8.7","v2.8.8","v2.8.9","v2.9.0","v2.9.0-beta","v2.9.0-rc1","v2.9.0-rc2","v2.9.1","v2.9.2","v2.9.3","v2.9.4","v2.9.5","v2.9.6","v2.9.7","v2.9.8","v2.9.9","v3.0.0","v3.0.0-beta","v3.0.0-rc1","v3.0.0-rc2","v3.0.0-rc3","v3.0.0-rc4","v3.0.1","v3.0.10","v3.0.2","v3.0.3","v3.0.4","v3.0.5","v3.0.6","v3.0.7","v3.0.8","v3.0.9","v3.1.0","v3.1.0-beta","v3.1.0-rc1","v3.1.0-rc2","v3.1.1","v3.1.2","v3.1.3","v3.1.4","v3.1.5","v3.1.6","v3.1.7"]},{"source":"osv","ecosystem":"Ubuntu:Pro:16.04:LTS","package":"moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.7.9+dfsg-1","2.7.10+dfsg-1","2.7.11+dfsg-1","2.7.11+dfsg-2","2.7.12+dfsg-1","3.0.3+dfsg-0ubuntu1","3.0.3+dfsg-0ubuntu1+esm1"]},{"source":"osv","ecosystem":"Ubuntu:Pro:18.04:LTS","package":"moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.3+dfsg-0ubuntu1","3.0.3+dfsg-0ubuntu1+esm1"]}],"products":[{"vendor":"moodle","product":"moodle"}],"references":[{"url":"http://www.securityfocus.com/bid/100848","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=358586","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","fix","web","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-12157","tags":["advisory"]},{"url":"https://github.com/moodle/moodle/commit/85b531e8beae3497ec2075e07e59c581fccb317c","tags":["web"]},{"url":"https://web.archive.org/web/20210124103841/http://www.securityfocus.com/bid/100848","tags":["web"]},{"url":"https://github.com/advisories/GHSA-gw95-48xq-gqf9"},{"url":"https://github.com/moodle/moodle","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2017-12157","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-12157","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2017-12157","description":"In Moodle 3.x, various course reports allow teachers to view details about users in the groups they can't 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