Vulnerability · Published Aug 5, 2026 · Assigned by WPScan
CVE-2026-16940Custom Fields for WooCommerce < 1.5.1 - Unauthenticated Arbitrary File Deletion via Path Traversal
Critical 10.0
In plain English
A critical-severity path traversal in Custom Fields from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities).
Severity (CVSS 3.1)10.0Critical
Exploit odds (30 days)0.6%top 52.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing unauthenticated users to delete arbitrary files on the server (such as wp-config.php), which can lead to a full site takeover.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Custom Fields | 0 – before 1.5.1 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
References
- https://wpscan.com/vulnerability/a315a6ac-3ffb-4735-92ca-6e85338f8807/ exploit, vdb-entry, technical-description