What is CVE-2026-6518?

CVE-2026-6518 is a high-severity vulnerability in Niteo Cmp – Coming Soon & Maintenance Plugin By Niteothemes, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-04-18.

How severe is CVE-2026-6518?

High severity. CVSS v3 base score is 8.8 out of 10.

Arbitrary file upload in Niteo Cmp – Coming Soon & Maintenance Plugin By Niteothemes

CVE-2026-6518

The CMP – Coming Soon & Maintenance Plugin by NiteoThemes plugin for WordPress is vulnerable to arbitrary file upload and remote code execution in all versions up to, and including, 4.1.16 via the `cmp_theme_update_install` AJAX action. Th…

Vulnerability class: Unrestricted File Upload

EPSS: 0.001 (23.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Niteo Cmp – Coming Soon & Maintenance Plugin By Niteothemes — versions 0

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

Frequently asked questions

What is CVE-2026-6518?: CVE-2026-6518 is a high-severity vulnerability in Niteo Cmp – Coming Soon & Maintenance Plugin By Niteothemes, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 8.8/10. Published 2026-04-18.
How severe is CVE-2026-6518?: High severity. CVSS v3 base score is 8.8 out of 10.