CVE-2026-3480
WP Blockade <= 0.9.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'shortcode' Parameter
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).
INFO
Published Date :
April 8, 2026, 7:16 a.m.
Last Modified :
July 24, 2026, 10:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-3480
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the WP Blockade plugin to the latest version.
- Ensure proper authorization checks are implemented.
- Remove or sanitize user-supplied shortcode input.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-3480.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-3480 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-3480
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-3480 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-3480 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Jul. 24, 2026
Action Type Old Value New Value Added Translation Title: plugin para WordPress WP Blockade, Description: El plugin WP Blockade para WordPress es vulnerable a la falta de autorización en todas las versiones hasta la 0.9.14 inclusive. El plugin registra un hook de acción admin_post 'wp-blockade-shortcode-render' que se mapea a la función render_shortcode_preview(). Esta función carece de cualquier verificación de capacidad (current_user_can()) y verificación de nonce, permitiendo a cualquier usuario autenticado ejecutar shortcodes arbitrarios de WordPress. La función toma un parámetro 'shortcode' proporcionado por el usuario de $_GET, lo pasa a través de stripslashes() y lo ejecuta directamente a través de do_shortcode(). Esto hace posible que atacantes autenticados, con acceso de nivel Suscriptor y superior, ejecuten shortcodes arbitrarios, lo que podría llevar a la revelación de información, escalada de privilegios u otros impactos dependiendo de qué shortcodes estén registrados en el sitio (por ejemplo, shortcodes de otros plugins que muestran datos sensibles, realizan acciones o incluyen archivos). -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'burlingtonbytes', 'product': 'WP Blockade – Visual Page Builder', 'versions': [{'status': 'affected', 'version': '0', 'versionType': 'semver', 'lessThanOrEqual': '0.9.14'}], 'defaultStatus': 'unaffected'}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-3480', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-04-08T14:20:04.875724Z'} -
New CVE Received by [email protected]
Apr. 08, 2026
Action Type Old Value New Value 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). Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-862 Added Reference https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L112 Added Reference https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L361 Added Reference https://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L393 Added Reference https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L112 Added Reference https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L361 Added Reference https://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L393 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/3f159aac-092b-4655-9d97-a496ac01738c?source=cve