Critical severity9.8NVD Advisory· Published Sep 26, 2026· Updated Sep 28, 2026
CVE-2026-82901
CVE-2026-82901
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: <=3.5.50
Patches
Vulnerability mechanics
References
7- plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.phpnvd
- plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.phpnvd
- plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.phpnvd
- plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.phpnvd
- plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.phpnvd
- plugins.trac.wordpress.org/changeset/3698232/ultimate-addons-for-contact-form-7nvd
- www.wordfence.com/threat-intel/vulnerabilities/id/872e1a05-aacc-44fa-93c1-8c3f7b2fb46dnvd
News mentions
2- Wordfence Intelligence Weekly WordPress Vulnerability Report (September 21, 2026 to September 27, 2026)Wordfence Blog · Oct 1, 2026
- WordPress: 25 Plugin Vulnerabilities Disclosed Together, Including Critical FlawsVypr Intelligence · Sep 27, 2026