{"id":"CVE-2026-18933","aliases":["EUVD-2026-53330","GHSA-cc9f-29gq-5x7c"],"status":"published","title":"wp-downloadmanager - Unrestricted File Upload via Missing Extension/MIME Validation and Path Traversal","description":"The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (current_user_can('manage_downloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wp_check_filetype_and_ext, no validate_file, and no extension blocklist exist anywhere in the upload handler.","severity":{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00499,"percentile":0.43082,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2026-08-05T11:27:06Z","modified":"2026-08-26T17:36:16Z","products":[{"vendor":"gamerz","product":"wp-downloadmanager"},{"vendor":"wp-downloadmanager","product":"wp-downloadmanager"}],"references":[{"url":"https://wordpress.org/plugins/wp-downloadmanager/#description","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18933"},{"url":"https://github.com/advisories/GHSA-cc9f-29gq-5x7c"}],"sources":{"cve":[{"id":"CVE-2026-18933","title":"wp-downloadmanager - Unrestricted File Upload via Missing Extension/MIME Validation and Path Traversal","description":"The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (current_user_can('manage_downloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wp_check_filetype_and_ext, no validate_file, and no extension blocklist exist anywhere in the upload handler.","status":"published","published":"2026-08-05T11:27:06.85Z","modified":"2026-08-10T11:43:27.237Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:20:12.60856Z"}],"euvd":[{"id":"EUVD-2026-53330","description":"The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (current_user_can('manage_downloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wp_check_filetype_and_ext, no validate_file, and no extension blocklist exist anywhere in the upload handler.","status":"published","published":"2026-08-05T11:27:06Z","modified":"2026-08-10T11:43:27Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T18:02:06.086083Z"}],"ghsa":[{"id":"GHSA-cc9f-29gq-5x7c","title":"The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release...","description":"The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (current_user_can('manage_downloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wp_check_filetype_and_ext(), no validate_file(), and no extension blocklist exist anywhere in the upload handler. The destination path is additionally built by concatenating the raw, unsanitized $_POST['file_upload_to'] value with no traversal check (no ../ filtering, no basename()/realpath() applied). Since the base download path is required to live under WP_CONTENT_DIR (a web-accessible location), an uploaded PHP file lands in a web-servable path and can be directly executed, resulting in remote code execution. The plugin's own later changelog confirms these protections were absent in this version: v1.69 added file-type validation via wp_check_filetype_and_ext(), and v1.69.1 added directory-traversal protection - neither existed in 1.68.11.","status":"published","published":"2026-08-05T12:31:33Z","modified":"2026-08-05T12:31:41Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T15:10:06.632203Z"}],"nvd":[{"id":"CVE-2026-18933","description":"The wp-downloadmanager WordPress plugin, in version 1.68.11 (also affecting the 6.9.4 release line), allows an admin-privileged user (current_user_can('manage_downloads')) to upload arbitrary files via download-add.php with no extension or MIME-type validation of any kind - no wp_check_filetype_and_ext, no validate_file, and no extension blocklist exist anywhere in the upload handler.","status":"published","published":"2026-08-05T12:18:56.553Z","modified":"2026-08-26T17:36:16.9Z","cvss":[{"version":"3.1","score":7.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:12:35.031043Z"}]}}