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CVE-2026-82901 is an unrestricted file upload vulnerability in Ultra Addons for Contact Form 7 for WordPress through version 3.5.50. Insufficient file-type validation in the uacf7_wpcf7_mail_components function allows an unauthenticated remote attacker to upload arbitrary files to the WordPress server. The flaw is reachable only when the plugin's PDF Generator module is enabled.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This six-file repository is a standalone Python 3 proof of concept for CVE-2026-82901 affecting Themefic Ultra Addons for Contact Form 7 through version 3.5.50. Its sole code file, poc.py, uses requests and urllib3 to normalize target URLs, fingerprint the installed plugin through publicly exposed plugin files, parse the discovered version, locate or accept a vulnerable Contact Form 7 form, and interact with the CF7 REST feedback path. The attack targets the PDF Generator integration's signature field handling: an uploaded signature file is allegedly copied to wp-content/uploads/uacf7-uploads without adequate type validation. Exploit mode attempts PHP-file upload and subsequent marker-based verification; check mode reports version/form-based exploitability candidates. The script supports a single target, proxies, custom timeouts, custom signature field names, a custom uploaded filename, and concurrent check-only scans from a target list. README.md documents prerequisites and usage, requirements.txt lists requests and urllib3, and targets.example.txt contains a sample target. The repository contains no third-party exploitation framework integration.
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14 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An unauthenticated arbitrary-file-upload vulnerability in Ultra Addons for Contact Form 7 for WordPress, affecting versions through 3.5.50. It results from insufficient file-type validation in uacf7_wpcf7_mail_components and could enable remote code execution through uploaded files. Exploitation requires the PDF Generator module to be enabled; that module is disabled by default.
A critical unauthenticated arbitrary-file-upload vulnerability in Ultra Addons for Contact Form 7 for WordPress through version 3.5.50. Insufficient file-type validation in uacf7_wpcf7_mail_components can allow upload of arbitrary files and may enable remote code execution when the PDF Generator module is enabled.
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