Medium

WP Blockade <= 0.9.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'shortcode' Parameter

  • Disclosed: 07.04.2026
  • Updated: 11.10.2026 10:22

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).

Affected software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin WP Blockade – Visual Page Builder <= 0.9.14 no fix

References

CVSS score 6.5/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE)
CWE-862
Platform
WordPress
Package
WP Blockade – Visual Page Builder
Disclosed
07.04.2026
Updated
11.10.2026 10:22

Sources and licenses

Wordfence Intelligence - 3f159aac-092b-4655-9d97-a496ac01738c - Wordfence Intelligence

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Copyright 2012-2026 Defiant Inc.

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Copyright 2012-2026 Defiant Inc.

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Copyright Defiant, Inc. All rights reserved except as granted below.
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Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

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Vulnerability history: WP Blockade – Visual Page Builder

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

Total entries
2
First → latest
04.2026 05.2026
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • Medium 2

Disclosures per year

  1. 2026: 2
  1. WP Blockade <= 0.9.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'shortcode' Parameter this entry
    Medium · 6.5 CVE-2026-3480 <= 0.9.14 no fix

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