Vanderwijk vulnerabilities

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Published CVEs affecting Vanderwijk products: 1 record(s), with severity, exploitation and fixes.

Content Blocks (Custom Post Widget) 1

Exploited only (KEV) →

CVE-2026-0894 Medium · 6.4 CWE-79 Apr 18, 2026

Content Blocks (Custom Post Widget) <= 3.3.9 - Authenticated (Author+) Stored Cross-Site Scripting via content_block Shortcode

The Content Blocks (Custom Post Widget) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's content_block shortcode in all versions up to, and including, 3.3.9 due to insufficient input sanitization and output escaping on user supplied values consumed from user-created content blocks. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.