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).
CVE-2026-3480
Score 6.5 from GitHub Security Advisory published 2026-04-08. NVD baseline CVSS 6.5; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.5
- EG Score
- 6.5(medium)
- EPSS
- 26.5%
- KEV
- Not listed
Published
April 8, 2026
Last Modified
April 27, 2026
References (7)
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L112
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L361
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-blockade/tags/0.9.14/wp-blockade.php#L393
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L112
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L361
- security@wordfencehttps://plugins.trac.wordpress.org/browser/wp-blockade/trunk/wp-blockade.php#L393
- security@wordfencehttps://www.wordfence.com/threat-intel/vulnerabilities/id/3f159aac-092b-4655-9d97-a496ac01738c?source=cve
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 35× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Related CVEs(same CWE)
Same CWE
10 shownCWE-862
Frequently asked(5)
What is CVE-2026-3480?
When was CVE-2026-3480 disclosed?
Is CVE-2026-3480 actively exploited?
What is the CVSS score of CVE-2026-3480?
How do I remediate CVE-2026-3480?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-3480
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