{"id":"UBUNTU-CVE-2026-63223","details":"CodeIgniter is a PHP full-stack web framework. Prior to 4.7.4, the is_image and mime_in upload validation rules do not independently enforce a safe client filename extension, allowing a remote attacker to upload executable content when an application preserves the client filename and stores uploads in a web-accessible script-enabled directory. Applications are impacted when they validate uploads using is_image or mime_in without an independent safe extension check (such as ext_in on patched versions), save uploaded files using the client-supplied filename, and place uploads in a web-accessible directory where PHP files can execute. This issue is fixed in version 4.7.4.","modified":"2026-08-06T03:10:24.224011480Z","published":"2026-07-31T06:16:00Z","upstream":["CVE-2026-63223"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63223"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-63223"}],"affected":[{"package":{"name":"php-codeigniter-framework","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/php-codeigniter-framework?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.13+dfsg1-1","3.1.13+dfsg1-2","3.1.13+dfsg1-2ubuntu2","3.1.13+dfsg1-3"],"ecosystem_specific":{"binaries":[{"binary_name":"php-codeigniter-framework","binary_version":"3.1.13+dfsg1-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63223.json"}},{"package":{"name":"php-codeigniter-framework","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/php-codeigniter-framework?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.1.13+dfsg1-6","3.1.13+dfsg1-8"],"ecosystem_specific":{"binaries":[{"binary_name":"php-codeigniter-framework","binary_version":"3.1.13+dfsg1-8"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63223.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}