{"id":"CVE-2015-5332","aliases":["EUVD-2015-5302","GHSA-xfgq-37vh-892j","MGASA-2015-0464"],"status":"published","title":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a...","description":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.","severity":{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01684,"percentile":0.77125,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2015-12-05T10:03:58Z","modified":"2026-06-17T00:28:56Z","affected":[{"source":"osv","ecosystem":"Mageia:5","package":"moodle","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.8.9-1.mga5"}]}],"bundled":9}],"products":[{"vendor":"moodle","product":"moodle"}],"references":[{"url":"http://git.moodle.org/gw?p=moodle.git\u0026a=search\u0026h=HEAD\u0026st=commit\u0026s=MDL-51000","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323229","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2015-5332"},{"url":"https://github.com/advisories/GHSA-xfgq-37vh-892j"},{"url":"https://advisories.mageia.org/MGASA-2015-0464.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=17280","tags":["report"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323230","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323231","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323232","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323233","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323234","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323235","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323236","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=323237","tags":["web"]},{"url":"https://docs.moodle.org/dev/Moodle_2.8.9_release_notes","tags":["web"]},{"url":"https://moodle.org/mod/forum/discuss.php?d=322852","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2015-5332","description":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.","status":"published","published":"2016-02-22T02:00:00Z","modified":"2024-08-06T06:41:09.302Z","updated_at":"2026-11-02T14:35:39.447402Z"}],"euvd":[{"id":"EUVD-2015-5302","description":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.","status":"published","published":"2016-02-22T02:00:00Z","modified":"2024-08-06T06:41:09Z","updated_at":"2026-11-03T02:22:00.863884Z"}],"ghsa":[{"id":"GHSA-xfgq-37vh-892j","title":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a...","description":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.","status":"published","published":"2022-05-13T01:12:49Z","modified":"2023-02-01T05:03:59Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T14:50:07.322817Z"}],"nvd":[{"id":"CVE-2015-5332","description":"Atto in Moodle 2.8.x before 2.8.9 and 2.9.x before 2.9.3 allows remote attackers to cause a denial of service (disk consumption) by leveraging the guest role and entering drafts with the editor-autosave feature.","status":"published","published":"2016-02-22T05:59:12.47Z","modified":"2026-06-17T00:28:56.727Z","cvss":[{"version":"3.0","score":6.8,"vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H","level":"medium","assessor":"primary"},{"version":"2.0","score":7.1,"vector":"AV:N/AC:M/Au:N/C:N/I:N/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:03:16.97467Z"}],"osv":[{"id":"MGASA-2015-0464","title":"Updated moodle packages fix security vulnerability","description":"In Moodle before 2.8.9, if guest access is open on the site,\nunauthenticated users can store Atto draft data through the editor\nautosave area, which could be exploited in a denial of service attack\n(CVE-2015-5332).\n\nIn Moodle before 2.8.9, due to a CSRF issue in the site registration form,\nit is possible to trick a site admin into sending aggregate stats to an\narbitrary domain. The attacker can send the admin a link to a site\nregistration form that will display the correct URL but, if submitted,\nwill register with another hub (CVE-2015-5335).\n\nIn Moodle before 2.8.9, the standard survey module is vulnerable to XSS\nattack by students who fill the survey (CVE-2015-5336).\n\nIn Moodle before 2.8.9, there was a reflected XSS vulnerability in the\nFlowplayer flash video player (CVE-2015-5337).\n\nIn Moodle before 2.8.9, password-protected lesson modules are subject to a\nCSRF vulnerability in the lesson login form (CVE-2015-5338).\n\nIn Moodle before 2.8.9, through web service core_enrol_get_enrolled_users\nit is possible to retrieve list of course participants who would not be\nvisible when using web site (CVE-2015-5339).\n\nIn Moodle before 2.8.9, logged in users who do not have capability 'View\navailable badges without earning them' can still access the full list of\nbadges (CVE-2015-5340).\n\nIn Moodle before 2.8.9, the SCORM module allows to bypass access\nrestrictions based on date and lets users view the SCORM contents\n(CVE-2015-5341).\n\nIn Moodle before 2.8.9, the choice module closing date can be bypassed,\nallowing users to delete or submit new responses after the choice module\nwas closed (CVE-2015-5342).\n","status":"published","published":"2015-12-05T10:03:58Z","modified":"2026-04-16T06:23:28.78777463Z","updated_at":"2026-11-02T15:49:39.792687Z"}]}}