CVE-2026-16940
Last modified
CVE-2026-16940 is a critical-severity vulnerability rated 10/10 on the CVSS scale. 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.. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Custom Fields | < 1.5.1 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-16940?
How severe is CVE-2026-16940?
How do I fix CVE-2026-16940?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-1690A flaw has been found in Tenda HG10 US_HG7_HG9_HG10re_300001…4.7
- CVE-2026-1691A vulnerability has been found in bolo-solo up to 2.6.4. Thi…8.8
- CVE-2026-16910A flaw was found in Red Hat Quay's notification webhook feat…5.5
- CVE-2026-1692A missing origin validation in WebSockets vulnerability affe…6.1
- CVE-2026-1693The OAuth grant type Resource Owner Password Credentials (RO…7.5
- CVE-2026-1694HTTP headers are added by the default configuration of IIS a…4.3
- CVE-2026-16942The WP Custom HTML Page WordPress plugin through 0.6.2 does …5.4
- CVE-2026-16948The Solace Extra WordPress plugin before 1.6.1 does not perf…8.1
- CVE-2026-16949The Term Pages WordPress plugin before 2.0.0 does not proper…5.8
- CVE-2026-1695An XSS vulnerability affects the OAuth web services used by …6.1
- CVE-2026-16953The AI Engine WordPress plugin before 3.6.4 does not verify…4.8
- CVE-2026-16954The AI Engine WordPress plugin before 3.6.4 does not redact…6.5
Are you affected by CVE-2026-16940?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST