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CVE-2024-9204 Details

Description

The Smart Custom 404 Error Page plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via $_SERVER['REQUEST_URI'] in all versions up to, and including, 11.4.7 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/functions.php#L112	[email protected]	Product
https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/inc/class-404page.php#L1227	[email protected]	Product
https://plugins.trac.wordpress.org/changeset/3161639/#file2	[email protected]	Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/93928123-c90d-4bbb-b51d-33e809867b79?source=cve	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
nerdpress smart custom 404 error page	< 11.4.8
CPE cpe:2.3:a:nerdpress:smart_custom_404_error_page::::::wordpress::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Oct 16, 2024	Initial Analysis	[email protected]
Oct 4, 2024	New CVE Received	[email protected]