CVE-2026-3480 Missing authorization in WP Blockade – Visual Page Builder
Authenticated users can execute arbitrary shortcodes due to missing authorization checks, potentially leading to code execution or privilege escalation.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-3480?
CVE-2026-3480 is a medium-severity missing authorization vulnerability in burlingtonbytes WP Blockade – Visual Page Builder, published on 8 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The WP Blockade plugin for WordPress is vulnerable to Missing Authorization in all versions up to and including 0.9.14. The plugin registers an admin_post action hook 'wp-blockade-shortcode-render' that maps to the render_shortcode_preview() function. This function lacks any capability check (current_user_can()) and nonce verification, allowing any authenticated user to execute arbitrary WordPress shortcodes. The function takes a user-supplied 'shortcode' parameter from $_GET, passes it through stripslashes(), and directly executes it via do_shortcode(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to execute arbitrary shortcodes, which could lead to information disclosure, privilege escalation, or other impacts depending on what shortcodes are registered on the site (e.g., shortcodes from other plugins that display sensitive data, perform actions, or include files).
Weakness: CWE-862
Which versions are affected by CVE-2026-3480?
How do I fix CVE-2026-3480?
No fix has been published for CVE-2026-3480 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-3480 being exploited?
There is no known exploitation of CVE-2026-3480 in the wild and no public exploit code.
Sources
Also known as GHSA-3q32-77vq-vq6v.