TI-2024-08540 Aliases CVE-2024-9204 GHSA-8q9m-fx9g-p437

Smart Custom 404 Error Page <= 11.4.7 - Reflected Cross-Site Scripting

LOW 28CWE-79Published 2024-10-04 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00462 40th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
nerdpressteam	Smart Custom 404 Error Page	up to 11.4.7	—	No fix listed	CNA

Smart Custom 404 Error Page Vendornerdpressteam Affected up to 11.4.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:nerdpress:smart_custom_404_error_page::::::wordpress::*	before 11.4.8	Vulnerable	NerdPress

cpe:2.3:a:nerdpress:smart_custom_404_error_page:*:*:*:*:*:wordpress:*:* Versions before 11.4.8 Vulnerable ·NerdPress

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-9204
2026-10-03 Alias added: GHSA-8q9m-fx9g-p437

References

Patch 1

https://plugins.trac.wordpress.org/changeset/3161639/#file2

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/93928123-c90d-4bbb-b51d-33e809867b79?source=cve

Other 2

TI-2024-02326 Hubbub Lite – Fast, Reliable Social Network Sharing Buttons <= 1.33.1 - PHP Object Injection CVSS 3.1HIGH 7.5
TI-2025-11442 Hubbub Lite <= 1.36.0 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences