{"api_version":"1","generated_at":"2026-08-07T11:01:19+00:00","cve":"CVE-2026-18933","urls":{"html":"https://cve.report/CVE-2026-18933","api":"https://cve.report/api/cve/CVE-2026-18933.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-18933","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-18933"},"summary":{"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. 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.","state":"PUBLISHED","assigner":"TuranSec","published_at":"2026-08-05 12:18:56","updated_at":"2026-08-05 13:20:39"},"problem_types":["CWE-434","CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type"],"metrics":[{"version":"3.1","source":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","type":"Secondary","score":"7.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","baseScore":7.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"}},{"version":"3.1","source":"CNA","type":"DECLARED","score":"7.2","severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","data":{"baseScore":7.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"references":[{"url":"https://wordpress.org/plugins/wp-downloadmanager/#description","name":"https://wordpress.org/plugins/wp-downloadmanager/#description","refsource":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18933","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18933","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"wp-downloadmanager","product":"wp-downloadmanager","version":"affected 1.69 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Kamol_cs","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"18933","cve":"CVE-2026-18933","epss":"0.004230000","percentile":"0.348460000","score_date":"2026-08-06","updated_at":"2026-08-07 00:14:19"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-18933","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","timestamp":"2026-08-05T12:30:22.625320Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-08-05T12:30:56.959Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unknown","product":"wp-downloadmanager","programFiles":["download-add.php"],"vendor":"wp-downloadmanager","versions":[{"lessThan":"1.69","status":"affected","version":"0","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Kamol_cs"}],"descriptions":[{"lang":"en","value":"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."}],"metrics":[{"cvssV3_1":{"baseScore":7.2,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-434","description":"CWE-434 Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-08-05T11:27:06.850Z","orgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","shortName":"TuranSec"},"references":[{"url":"https://wordpress.org/plugins/wp-downloadmanager/#description"}],"title":"wp-downloadmanager: Unrestricted File Upload via Missing Extension/MIME Validation and Path Traversal"}},"cveMetadata":{"assignerOrgId":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","assignerShortName":"TuranSec","cveId":"CVE-2026-18933","datePublished":"2026-08-05T11:27:06.850Z","dateReserved":"2026-08-05T11:26:38.495Z","dateUpdated":"2026-08-05T12:30:56.959Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-05 12:18:56","lastModifiedDate":"2026-08-05 13:20:39","problem_types":["CWE-434","CWE-434 CWE-434 Unrestricted Upload of File with Dangerous Type"],"metrics":{"cvssMetricV31":[{"source":"309f9ea4-e3e9-4c6c-b79d-e8eb01244f2c","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","baseScore":7.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.2,"impactScore":5.9}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-08-05T12:30:22.625320Z","id":"CVE-2026-18933","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"18933","Ordinal":"1","Title":"wp-downloadmanager: Unrestricted File Upload via Missing Extensi","CVE":"CVE-2026-18933","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"18933","Ordinal":"1","NoteData":"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.","Type":"Description","Title":"wp-downloadmanager: Unrestricted File Upload via Missing Extensi"}]}}}