CVE-2026-16940
Critical
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.
SeverityCritical
CVSS10.0
Exploit probability—
ProductCustom Fields
PublishedAug 5, 2026
First seenAug 5, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- Custom Fields1.5.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Custom Fields | v < 1.5.1 | 1.5.1 |
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