phpwarden
FeaturesComparePricingAdvisoriesBlogDocsChangelogLog in
Log inStart free

CVE-2024-9204: 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

medium Affects 404page (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published ; advisory modified .

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

Package
404page (WordPress plugin) WordPress
Affected versions
<11.4.8
Fixed in
11.4.8
Severity
medium  CVSS 6.1
Exploitation
not on CISA KEV · EPSS 0% (40.0th percentile)
Published
2024-10-04
Source
nvd

References

CWE-79
NVD record404page (WordPress plugin) advisories

Am I affected?

Find out in one command. phpwarden checks your WordPress install against this advisory and 20,000+ others, ranked by real-world exploitation (CISA KEV + EPSS). Free, offline, open data.

# one-time install
pip install phpwarden

# then
phpwarden wordpress /var/www/html

Or keep it checked automatically with the GitHub Action or a nightly cron; see WordPress docs.

Install docs   How findings are ranked

Related advisories