WP Blockade <= 0.9.14 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Shortcode Execution via 'shortcode' Parameter
Summary
| CVE | CVE-2026-3480 |
|---|---|
| State | PUBLISHED |
| Assigner | Wordfence |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-04-08 07:16:21 UTC |
| Updated | 2026-04-08 21:26:35 UTC |
| 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). |
Risk And Classification
Primary CVSS: v3.1 6.5 MEDIUM from [email protected]
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS: 0.000360000 probability, percentile 0.106250000 (date 2026-04-14)
Problem Types: CWE-862 | CWE-862 CWE-862 Missing Authorization
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| 3.1 | CNA | DECLARED | 6.5 | MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
NoneAvailability
NoneCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Burlingtonbytes | WP Blockade Visual Page Builder | affected 0.9.14 semver | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php | [email protected] | plugins.trac.wordpress.org | |
| plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php | [email protected] | plugins.trac.wordpress.org | |
| www.wordfence.com/threat-intel/vulnerabilities/id/3f159aac-092b-4655-9d97-a496a... | [email protected] | www.wordfence.com | |
| plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php | [email protected] | plugins.trac.wordpress.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Youcef Hamdani (en)
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| CNA | 2026-04-07T17:39:13.000Z | Disclosed |
There are currently no legacy QID mappings associated with this CVE.