{"id":"CVE-2026-82901","published":"2026-09-26T19:16:28.427","lastModified":"2026-09-28T15:16:04.793","description":"The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Arbitrary File Upload due to insufficient file type validation in the 'uacf7_wpcf7_mail_components' function in all versions up to, and including, 3.5.50. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: This is only exploitable when the plugin's PDF Generator module is enabled, which is disabled by default.","cvssScore":9.8,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-434"],"vendors":[],"products":[],"references":[{"url":"https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L608","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L807","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L133","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L192","tags":[]},{"url":"https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L300","tags":[]},{"url":"https://plugins.trac.wordpress.org/changeset/3698232/ultimate-addons-for-contact-form-7","tags":[]},{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/872e1a05-aacc-44fa-93c1-8c3f7b2fb46d?source=cve","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":{"summary":"The flaw allows unauthenticated attackers to upload arbitrary files, potentially leading to remote code execution, due to insufficient file type validation in the Ultra Addons for Contact Form 7 plugin.","exploitability":"Exploitation is moderately hard as it requires the PDF Generator module to be enabled, which is disabled by default.","blast_radius":"If exploited, the impact could be severe, as it allows remote code execution on the affected site's server.","remediation":"Disable the PDF Generator module in the Ultra Addons for Contact Form 7 plugin.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["rce","web","upload","wordpress"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-27T08:53:21.803Z"}}