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.

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Advisories
Source ID Title
EUVD EUVD EUVD-2024-32151 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.
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 26 Feb 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Johan Van Der Wijk
Johan Van Der Wijk content Blocks Custom Post Widget
CPEs cpe:2.3:a:johan_van_der_wijk:content_blocks_custom_post_widget:*:*:*:*:*:*:*:*
Vendors & Products Johan Van Der Wijk
Johan Van Der Wijk content Blocks Custom Post Widget
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 15 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00341}

epss

{'score': 0.00261}


Wed, 19 Feb 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Vanderwijk
Vanderwijk content Blocks
Weaknesses CWE-79
CPEs cpe:2.3:a:vanderwijk:content_blocks:*:*:*:*:*:wordpress:*:*
Vendors & Products Vanderwijk
Vanderwijk content Blocks

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Wordfence

Published:

Updated: 2024-08-01T20:12:07.844Z

Reserved: 2024-04-10T00:16:48.312Z

Link: CVE-2024-3565

cve-icon Vulnrichment

Updated: 2024-08-01T20:12:07.844Z

cve-icon NVD

Status : Analyzed

Published: 2024-06-01T04:15:09.000

Modified: 2025-02-19T16:08:35.123

Link: CVE-2024-3565

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses