What is CVE-2023-6876?

CVE-2023-6876 is a medium-severity vulnerability in Nayrathemes Clever Fox, classified under Missing Authorization. CVSS score: 5.4/10. Published 2024-06-07.

How severe is CVE-2023-6876?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Auth bypass in Nayrathemes Clever Fox

CVE-2023-6876

The Clever Fox – One Click Website Importer by Nayra Themes plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'clever-fox-activate-theme' function in all versions up to, and including, 25.2.0. This makes it possible for authenticated attackers, with subscriber access and above, to modify the active theme, including to an invalid value which can take down the site.

Vulnerability class: Broken Access Control

Published 2024-06-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (30.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 30.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Nayrathemes Clever Fox — versions 0
Nayrathemes Clever Fox

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

www.wordfence.com/threat-intel/vulnerabilities/id/9e1f94d9-8be6-4174-90a5-820c0… (Third Party Advisory)
plugins.trac.wordpress.org/browser/clever-fox/trunk/clever-fox.php (Product)
plugins.trac.wordpress.org/changeset (Patch)

Frequently asked questions

What is CVE-2023-6876?: CVE-2023-6876 is a medium-severity vulnerability in Nayrathemes Clever Fox, classified under Missing Authorization. CVSS score: 5.4/10. Published 2024-06-07.
How severe is CVE-2023-6876?: Medium severity. CVSS v3 base score is 5.4 out of 10.