{"id":"CVE-2016-3734","aliases":["EUVD-2022-5130","GHSA-r867-v437-4rrm","UBUNTU-CVE-2016-3734"],"status":"published","title":"Moodle Cross-site request forgery (CSRF) vulnerability","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","severity":{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01129,"percentile":0.66583,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-352"],"published":"2017-04-20T21:00:00Z","modified":"2026-10-24T10:30:15Z","fixes":[{"ecosystem":"Packagist","package":"moodle/moodle","fixed_in":["2.7.14","2.8.12","2.9.6","3.0.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.14"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.8"},{"fixed":"2.8.12"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.9"},{"fixed":"2.9.6"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0"},{"fixed":"3.0.4"}]}]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.14"}]}],"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","v2.7.2","v2.7.3","v2.7.4","v2.7.5","v2.7.6","v2.7.7","v2.7.8","v2.7.9"]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.8"},{"fixed":"2.8.12"}]}],"versions":["v2.8.0","v2.8.0-beta","v2.8.0-rc1","v2.8.0-rc2","v2.8.1","v2.8.10","v2.8.11","v2.8.2","v2.8.3","v2.8.4","v2.8.5","v2.8.6","v2.8.7","v2.8.8","v2.8.9"]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.9"},{"fixed":"2.9.6"}]}],"versions":["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"]},{"source":"osv","ecosystem":"Packagist","package":"moodle/moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0"},{"fixed":"3.0.4"}]}],"versions":["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","v3.0.2","v3.0.3"]}],"products":[{"vendor":"moodle","product":"moodle"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2016/05/17/4","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"http://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-53755","tags":["x_refsource_CONFIRM","x_transferred","Patch","fix","web"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1335933","tags":["x_refsource_CONFIRM","x_transferred","Issue Tracking","Third Party Advisory","report","web"]},{"url":"http://www.securitytracker.com/id/1035902","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"http://www.securityfocus.com/bid/91281","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-3734","tags":["advisory"]},{"url":"https://github.com/moodle/moodle/commit/01408d619ba89d32f9ad83308990ff9b0374cb57","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/1f5c494f761ef7961c449075adf192e149148e1a","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/7873e36f0cc0ccfd1424ff9302eb1ea9e4e74305","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/d98c24659935c1bdff4b35ec0a85ab1a3ab05d9f","tags":["web"]},{"url":"https://github.com/moodle/moodle/commit/e90e0ea5700ee9b016034b74ed7f41787109d1a2","tags":["web"]},{"url":"https://web.archive.org/web/20160703032310/http://www.securitytracker.com/id/1035902","tags":["web"]},{"url":"https://web.archive.org/web/20160930194927/http://www.securityfocus.com/bid/91281","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r867-v437-4rrm"},{"url":"https://github.com/moodle/moodle","tags":["package"]},{"url":"https://ubuntu.com/security/CVE-2016-3734","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2016-3734","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2016-3734","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"published","published":"2017-04-20T21:00:00Z","modified":"2024-08-06T00:03:34.471Z","updated_at":"2026-11-02T14:33:34.094161Z"}],"euvd":[{"id":"EUVD-2022-5130","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"published","published":"2017-04-20T21:00:00Z","modified":"2024-08-06T00:03:34Z","updated_at":"2026-11-03T02:22:49.109782Z"}],"ghsa":[{"id":"GHSA-r867-v437-4rrm","title":"Moodle Cross-site request forgery (CSRF) vulnerability","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"published","published":"2022-05-13T01:12:38Z","modified":"2024-01-26T17:52:55Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:37:33.019154Z"}],"nvd":[{"id":"CVE-2016-3734","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"published","published":"2017-04-20T21:59:00.873Z","modified":"2026-06-17T00:46:16.793Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:03:37.619685Z"}],"osv":[{"id":"CVE-2016-3734","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"published","published":"2017-04-20T21:59:00.873Z","modified":"2026-10-24T10:30:15.034398133Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:02.454775Z"},{"id":"GHSA-r867-v437-4rrm","title":"Moodle Cross-site request forgery (CSRF) vulnerability","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"published","published":"2022-05-13T01:12:38Z","modified":"2024-02-16T08:05:41.468732Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:46:55.480549Z"},{"id":"UBUNTU-CVE-2016-3734","description":"Cross-site request forgery (CSRF) vulnerability in markposts.php in Moodle 3.0 through 3.0.3, 2.9 through 2.9.5, 2.8 through 2.8.11, 2.7 through 2.7.13 and earlier allows remote attackers to hijack the authentication of users for requests that marks forum posts as read.","status":"withdrawn","published":"2017-04-20T21:59:00Z","modified":"2025-07-16T07:34:23.797731Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:11.872222Z"}]}}