CVE-2026-16940

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.

CVSS v3.1

10.0 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

EPSS

0.40% chance of exploitation in the next 30 days, 33th percentile

Published

2026-08-05

Updated

2026-08-06

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/a315a6ac-3ffb-4735-92ca-6e85338f8807/

References

• CVE Record
• NVD entry

Related

• CVE-2026-1691
• CVE-2026-16942
• CVE-2026-1690
• CVE-2026-16947
• CVE-2026-1689
• CVE-2026-16948