{"id":"CVE-2009-4449","aliases":["EUVD-2009-4416","GHSA-84hh-rjph-rr29"],"status":"published","title":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier...","description":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02698,"percentile":0.86017,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-22"],"published":"2009-12-29T20:15:00Z","modified":"2026-06-16T23:13:41Z","products":[{"vendor":"mybb","product":"mybb"}],"references":[{"url":"http://www.securityfocus.com/bid/37489","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://openwall.com/lists/oss-security/2010/10/08/7","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List"]},{"url":"http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/admin/modules/user/users.php","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","Exploit"]},{"url":"http://secunia.com/advisories/37906","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Broken Link","Vendor Advisory"]},{"url":"http://openwall.com/lists/oss-security/2010/10/11/8","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List"]},{"url":"http://dev.mybboard.net/issues/617","tags":["x_refsource_CONFIRM","x_transferred","Broken Link"]},{"url":"http://www.vupen.com/english/advisories/2009/3651","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Permissions Required","Vendor Advisory"]},{"url":"http://openwall.com/lists/oss-security/2010/12/06/2","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List"]},{"url":"http://osvdb.org/61359","tags":["vdb-entry","x_refsource_OSVDB","x_transferred","Broken Link"]},{"url":"http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update/","tags":["x_refsource_CONFIRM","x_transferred","Release Notes"]},{"url":"http://dev.mybboard.net/projects/mybb/repository/revisions/4663/diff/branches/1.4-stable/usercp.php","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","Exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2009-4449"},{"url":"http://blog.mybboard.net/2009/12/29/mybb-1-4-11-released-minor-patch-security-update"},{"url":"https://github.com/advisories/GHSA-84hh-rjph-rr29"}],"sources":{"cve":[{"id":"CVE-2009-4449","description":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.","status":"published","published":"2009-12-29T20:15:00Z","modified":"2024-08-07T07:01:20.338Z","updated_at":"2026-11-02T14:33:24.782697Z"}],"euvd":[{"id":"EUVD-2009-4416","description":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.","status":"published","published":"2009-12-29T20:15:00Z","modified":"2024-08-07T07:01:20Z","updated_at":"2026-11-03T01:39:10.134983Z"}],"ghsa":[{"id":"GHSA-84hh-rjph-rr29","title":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier...","description":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.","status":"published","published":"2022-05-02T03:54:51Z","modified":"2025-04-09T04:18:51Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T15:01:02.112182Z"}],"nvd":[{"id":"CVE-2009-4449","description":"Directory traversal vulnerability in MyBB (aka MyBulletinBoard) 1.4.10, and possibly earlier versions, when changing the user avatar from the gallery, allows remote authenticated users to determine the existence of files via directory traversal sequences in the avatar and possibly the gallery parameters, related to (1) admin/modules/user/users.php and (2) usercp.php.","status":"published","published":"2009-12-29T20:41:20.5Z","modified":"2026-06-16T23:13:41.35Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":6.3,"vector":"AV:N/AC:M/Au:S/C:C/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-22"],"updated_at":"2026-11-02T14:01:38.33745Z"}]}}