Description

WordPress Plugin Custom 404 Pro is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Custom 404 Pro version 3.2.8 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 3.2.10 or latest

References

https://www.pluginvulnerabilities.com/2019/06/25/other-vulnerability-data-sources-miss-that-a-reflected-xss-vulnerability-in-custom-404-pro-hasnt-been-fixed/

https://plugins.svn.wordpress.org/custom-404-pro/trunk/readme.txt

Related Vulnerabilities

TYPO3 Improper Input Validation Vulnerability (CVE-2010-3716)

WordPress Plugin Social Media Widget by Acurax Multiple Unspecified Vulnerabilities (3.2.3)

Jboss EAP Other Vulnerability (CVE-2014-3490)

WordPress Plugin WP Maintenance Mode Cross-Site Scripting (2.2.3)

Family Connections Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2012-0699)

Severity

High

Classification

CVE-2019-14789 CWE-79 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS