Description
WordPress Plugin Virtual Robots.txt 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 Virtual Robots.txt version 1.9 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.10 or latest
References
https://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28638
https://plugins.svn.wordpress.org/pc-robotstxt/trunk/readme.txt
Related Vulnerabilities
RubyGems Improper Input Validation Vulnerability (CVE-2015-4020)
Plone CMS Permissions, Privileges, and Access Controls Vulnerability (CVE-2016-4043)
WordPress Plugin Wordfence Security-Firewall & Malware Scan Cross-Site Scripting (5.2.2)
Oracle Database Server CVE-2014-6544 Vulnerability (CVE-2014-6544)