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).
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Fixes

Solution

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Workaround

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History

Wed, 08 Apr 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Burlingtonbytes
Burlingtonbytes wp Blockade – Visual Page Builder
Wordpress
Wordpress wordpress
Vendors & Products Burlingtonbytes
Burlingtonbytes wp Blockade – Visual Page Builder
Wordpress
Wordpress wordpress

Wed, 08 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 08 Apr 2026 07:00:00 +0000

Type Values Removed Values Added
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).
Title WP Blockade <= 0.9.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'shortcode' Parameter
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2026-04-08T16:48:07.477Z

Reserved: 2026-03-03T14:43:17.464Z

Link: CVE-2026-3480

cve-icon Vulnrichment

Updated: 2026-04-08T14:20:09.623Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-08T07:16:21.243

Modified: 2026-04-08T21:26:35.910

Link: CVE-2026-3480

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-08T19:43:46Z

Weaknesses