What is CVE-2026-15336?

CVE-2026-15336 is a medium-severity vulnerability in Catchplugins Catch Themes Demo Import, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-07-16.

How severe is CVE-2026-15336?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Catchplugins Catch Themes Demo Import

CVE-2026-15336

The Catch Themes Demo Import plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.3. This is due to the catch_themes_demo_import_activate_plugin() function, hooked on admin_init when the activate_plugin GET parameter is present, calling Plugin_Upgrader::install() to download and install a plugin from WordPress.org before performing the current_user_can('activate_plugins') capability check. This makes it possible for authenticated attackers, with subscriber-level access and above, to install the hardcoded 'essential-content-types' plugin from the WordPress.

Vulnerability class: Broken Access Control

EPSS: 0.004 (36.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Catchplugins Catch Themes Demo Import — versions 0

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

Frequently asked questions

What is CVE-2026-15336?: CVE-2026-15336 is a medium-severity vulnerability in Catchplugins Catch Themes Demo Import, classified under Missing Authorization. CVSS score: 4.3/10. Published 2026-07-16.
How severe is CVE-2026-15336?: Medium severity. CVSS v3 base score is 4.3 out of 10.