Smart Custom 404 Error Page <= 11.4.7 - Reflected Cross-Site Scripting
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.1epss 0.5%
exploitation probability
0.5%top 61% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
nerdpressteam · Smart Custom 404 Error PageReferences
https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/functions.php#L112https://plugins.trac.wordpress.org/browser/404page/tags/11.4.7/inc/class-404page.php#L1227https://plugins.trac.wordpress.org/changeset/3161639/#file2https://www.wordfence.com/threat-intel/vulnerabilities/id/93928123-c90d-4bbb-b51d-33e809867b79?source=cve