Extensions For CF7 (Contact form 7 Database, Conditional Fields and Redirection) <= 3.4.5 - Unauthenticated Arbitrary File Upload via Signature Field File Upload
The Extensions For CF7 (Contact form 7 Database, Conditional Fields and Redirection) plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 3.4.5 via the extcf7_submit function. This is due to missing file extension, MIME type, and size validation in the signature field's validation_filter(), combined with the absence of PHP-execution guards in the upload directory and a sanitize_file_name() bypass that converts shell.php- into shell.php. This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.
CVE-2026-94589
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-94589
Extensions For CF7 (Contact form 7 Database, Conditional Fields and Redirection)
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "htplugins",
"product": "Extensions For CF7 (Contact form 7 Database, Conditional Fields and Redirection)",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "3.4.5"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-94589
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #16996 · Revision 1
- Added to Heist Feed
- Publisher date