CVE-2026-82901
9.8 CRITICALPublished 2026-09-26 · Updated 2026-09-28
AI risk analysis
- 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.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Disable the PDF Generator module in the Ultra Addons for Contact Form 7 plugin.
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD 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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-434
All references
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L608
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L807
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L133
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L192
- https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L300
- https://plugins.trac.wordpress.org/changeset/3698232/ultimate-addons-for-contact-form-7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/872e1a05-aacc-44fa-93c1-8c3f7b2fb46d?source=cve
Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.
Related CVEs
- HIGHCVE-2026-12264
- CRITICALCVE-2026-14175
- CRITICALCVE-2026-16618
- CRITICALCVE-2026-18143
- HIGHCVE-2026-54416PoC
- HIGHCVE-2026-6147
- CRITICALCVE-2026-70356PoC
- CRITICALCVE-2026-82187
Related by shared AI tags and CWE weakness class. Browse the full archive.