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Vulnerabilities

Vulnerability · 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,…

Published Apr 18, 2026 · catalog updated Jun 17, 2026 · the affected product

Check if you run it

No confirmed exploitation is on record for CVE-2026-6518. EPSS is 0.95%. Act only if a listed version of the affected product is installed.

Gaps on this record

  • No plain product name is stored. The page cannot tell you which product to check.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.95%
Remediation
Version ranges on file
Affected products
stated named in the record

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 AJAX action. This is due to the function only checking for the capability (available to Editors and above) instead of (Administrators only), combined with a lack of proper validation on the user-supplied file URL and no verification of the downloaded file's content before extraction. This makes it possible for authenticated attackers, with Administrator-level access and above, to force the server to download and extract a malicious ZIP file from a remote attacker-controlled URL into a web-accessible directory ( ), resulting in remote code execution. Due to the lack of a nonce for Editors, they are unable to exploit this vulnerability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • stated named in the record<= 4.1.16

How to fix CVE-2026-6518

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-6518. EPSS is 0.95%. Act only if a listed version of the affected product is installed.

Which versions are affected?

Compare what you have installed with named in the record <= 4.1.16. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-434: Unrestricted Upload of File with Dangerous Type. EPSS 0.95%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

WordPress security

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 18, 2026 · NIST NVD

    Detected

    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 AJAX action. This is due to the function only checking for the capability (available to Editors and above) instead of (Administrators only), combined with a lack of proper validation on the user-supplied

  2. Jun 17, 2026 · NIST NVD

    Updated

    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 AJAX action. This is due to the function only checking for the capability (available to Editors and above) instead of (Administrators only), combined with a lack of proper validation on the user-supplied

Sources

  • CVE.orgVulnerability recordCVE-2026-6518

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-6518

    30-day exploitation probability 1.0%

    first.org
  • NIST NVDVulnerability recordCVE-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 AJAX action. This is due to the function only checking f

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.