WordPress CVEs

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.

Affected WordPress components

• Smart Custom 404 Error Page Plugin · 404page
  Confirmed match Active
  Up to and including 11.4.7
  View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

• nerdpressteam Smart Custom 404 Error Page — Up to and including 11.4.7
• nerdpress smart_custom_404_error_page — Before 11.4.8

References

• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/functions.php#L112 Product
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/inc/class-404page.php#L1227 Product
• plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3161639/#file2 Patch
• www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/93928123-c90d-4bbb-b51d-33e809867b79?source=cve Third Party Advisory
• nvd.nist.gov Official NVD record