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, 3.3.0 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
CVE-2024-3565 is a medium severity with CVSS 6.4 Stored Cross-Site Scripting issue affecting the Plugin Content Blocks (Custom Post Widget). It affects Versions up to 3.3.0 and is fixed in 3.3.1.
CVE-2024-3565 is tracked for the Plugin Content Blocks (Custom Post Widget) as medium severity with CVSS 6.4. The affected range is Versions up to 3.3.0. Update Content Blocks (Custom Post Widget) to 3.3.1 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
custom-post-widget
View on wordpress.org
|
| CVE | CVE-2024-3565 |
| Patched Versions |
3.3.1
|
| Affected Versions |
Versions up to 3.3.0
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Content Blocks (Custom Post Widget) <= 3.3.0 - Authenticated (Contributor+) Local File Inclusion via Shortcode
Content Blocks (Custom Post Widget) <= 3.3.9 - Authenticated (Author+) Stored Cross-Site Scripting via content_block Shortcode
Content Blocks (Custom Post Widget) <= 3.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via content Parameter
Content Blocks (Custom Post Widget) <= 3.3.5 - Authenticated (Contributor+) Stored Cross-Site Scripting
Content Blocks (Custom Post Widget) <= 3.3.0 - Authenticated (Contributor+) Stored Cross-Site Scripting
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