{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-6518", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-04-17T15:01:57.890Z", "datePublished": "2026-04-18T03:37:04.707Z", "dateUpdated": "2026-04-18T03:37:04.707Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-04-18T03:37:04.707Z"}, "affected": [{"vendor": "niteo", "product": "CMP \u2013 Coming Soon & Maintenance Plugin by NiteoThemes", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "4.1.16", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The CMP \u2013 Coming Soon & Maintenance Plugin by NiteoThemes plugin for WordPress is vulnerable to arbitrary file upload and remote code execution in all versions up to, and including, 4.1.16 via the `cmp_theme_update_install` AJAX action. This is due to the function only checking for the `publish_pages` capability (available to Editors and above) instead of `manage_options` (Administrators only), combined with a lack of proper validation on the user-supplied file URL and no verification of the downloaded file's content before extraction. This makes it possible for authenticated attackers, with Administrator-level access and above, to force the server to download and extract a malicious ZIP file from a remote attacker-controlled URL into a web-accessible directory (`wp-content/plugins/cmp-premium-themes/`), resulting in remote code execution. Due to the lack of a nonce for Editors, they are unable to exploit this vulnerability."}], "title": "CMP \u2013 Coming Soon & Maintenance Plugin by NiteoThemes <= 4.1.16 - Missing Authorization to Authenticated (Administrator+) Arbitrary File Upload and Remote Code Execution", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d6fb275b-dbba-46df-b170-977ef4a84c4c?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.16/niteo-cmp.php#L1421"}, {"url": "https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.16/niteo-cmp.php#L1437"}, {"url": "https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.16/niteo-cmp.php#L1447"}, {"url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fcmp-coming-soon-maintenance/tags/4.1.16&new_path=%2Fcmp-coming-soon-maintenance/tags/4.1.17"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-434 Unrestricted Upload of File with Dangerous Type", "cweId": "CWE-434", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "ll"}], "timeline": [{"time": "2026-04-17T15:02:18.000Z", "lang": "en", "value": "Disclosed"}]}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "The CMP \u2013 Coming Soon & Maintenance Plugin by NiteoThemes plugin for WordPress is vulnerable to arbitrary file upload and remote code execution in all versions up to, and including, 4.1.16 via the `cmp_theme_update_install` AJAX action. This is due to the function only checking for the `publish_pages` capability (available to Editors and above) instead of `manage_options` (Administrators only), combined with a lack of proper validation on the user-supplied file URL and no verification of the downloaded file's content before extraction. This makes it possible for authenticated attackers, with Administrator-level access and above, to force the server to download and extract a malicious ZIP file from a remote attacker-controlled URL into a web-accessible directory (`wp-content/plugins/cmp-premium-themes/`), resulting in remote code execution. Due to the lack of a nonce for Editors, they are unable to exploit this vulnerability."}], "id": "CVE-2026-6518", "lastModified": "2026-04-18T05:16:24.377", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "security@wordfence.com", "type": "Primary"}]}, "published": "2026-04-18T05:16:24.377", "references": [{"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.16/niteo-cmp.php#L1421"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.16/niteo-cmp.php#L1437"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/browser/cmp-coming-soon-maintenance/tags/4.1.16/niteo-cmp.php#L1447"}, {"source": "security@wordfence.com", "url": "https://plugins.trac.wordpress.org/changeset?old_path=%2Fcmp-coming-soon-maintenance/tags/4.1.16&new_path=%2Fcmp-coming-soon-maintenance/tags/4.1.17"}, {"source": "security@wordfence.com", "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/d6fb275b-dbba-46df-b170-977ef4a84c4c?source=cve"}], "sourceIdentifier": "security@wordfence.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-434"}], "source": "security@wordfence.com", "type": "Primary"}]}

{}

{}