Arbitrary file upload in Contact Form 7
CVE-2026-114432
The Contact Form 7 WordPress plugin before 6.2.4 does not validate the type or extension of files uploaded through a form file field, and a flaw in its temporary-file cleanup leaves the uploaded file on disk, allowing unauthenticated users to upload arbitrary files to the site. On a stock Debian or Ubuntu Apache configuration, which lists directory contents and maps .phar to the PHP handler, the stored file can be located and executed, leading to Remote Code Execution. On other configurations, including nginx and Apache with .htaccess overrides enabled, the issue is limited to an arbitrary file written into the uploads directory, which may still be served as active content such as HTML or SVG from the site's own origin.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Contact Form 7
Weakness classification (CWE)
References
- wpscan.com/vulnerability/6b0a5d1f-84fb-425f-8d37-ddde5703937c/ (technical-description, exploit, vdb-entry)
Frequently asked questions
- What is CVE-2026-114432?
- CVE-2026-114432 is a critical-severity vulnerability in Contact Form 7, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.8/10. Published 2026-11-08.
- How severe is CVE-2026-114432?
- Critical severity. CVSS v3 base score is 9.8 out of 10.