CVE-2024-4546 - CVE House
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Status published Medium CVE-2024-4546

Custom Post Type Attachment <= 3.4.5 - Authenticated (Contributor+) Stored Cross-Site Scripting via pdf_attachment Shortcode

Vulnerability Description

The Custom Post Type Attachment plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'pdf_attachment' shortcode in all versions up to, and including, 3.4.5 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.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Francesco Carlucci

Affected Vendor

avimegladon

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Affected Software

Custom Post Type Attachment
Vulnerable Versions:
0

Timeline

Official Publish: May 16th, 2024
Last Modified: April 8th, 2026
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Weaknesses (CWE)