CVE-2019-14789: The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.

medium Affects custom-404-pro (WordPress plugin). Feed 2026.10.29.1, updated 2026-10-28; published 2019-08-15; advisory modified 2026-06-17.

The Custom 404 Pro plugin 3.2.8 for WordPress has XSS via the wp-admin/admin.php?page=c4p-main page parameter.

Package: custom-404-pro (WordPress plugin) WordPress
Affected versions: =3.2.8
Fixed in: no fix recorded
Severity: medium CVSS 6.1
Exploitation: not on CISA KEV · EPSS 2% (75.9th percentile)
Published: 2019-08-15
Source: nvd

References

CWE-79

NVD record custom-404-pro (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

CVE-2023-2023 medium The Custom 404 Pro WordPress plugin before 3.7.3 does not escape some URLs before outputti same package: custom-404-pro (WordPress plugin)
CVE-2019-15838 medium The custom-404-pro plugin before 3.2.8 for WordPress has reflected XSS, a different vulner same package: custom-404-pro (WordPress plugin)
CVE-2023-2032 critical The Custom 404 Pro WordPress plugin before 3.8.1 does not properly sanitize database input same package: custom-404-pro (WordPress plugin)
CVE-2023-0385 medium The Custom 404 Pro plugin for WordPress is vulnerable to Cross-Site Request Forgery in ver same package: custom-404-pro (WordPress plugin)
CVE-2020-11023 KEV medium Potential XSS vulnerability in jQuery same weakness: CWE-79
CVE-2019-9978 KEV medium The social-warfare plugin before 3.5.3 for WordPress has stored XSS via the wp-admin/admin same weakness: CWE-79