Auth bypass in Extendthemes Kubio Ai Page Builder

CVE-2025-8487

The Kubio AI Page Builder plugin for WordPress is vulnerable to unauthorized plugin installation due to a missing capability check on the kubio-image-hub-install-plugin AJAX action in all versions up to, and including, 2.6.3. This makes it possible for authenticated attackers, with Subscriber-level access and above, to install the Image Hub plugin.

Vulnerability class: Broken Access Control

EPSS: 0.003 (18.2th percentile) — read the EPSS interpretation.

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.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-8487?
CVE-2025-8487 is a medium-severity vulnerability in Extendthemes Kubio Ai Page Builder, classified under Missing Authorization. CVSS score: 5.4/10. Published 2025-09-19.
How severe is CVE-2025-8487?
Medium severity. CVSS v3 base score is 5.4 out of 10.