Description
WordPress Plugin Ultimate FAQ 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 Ultimate FAQ version 1.8.29 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.8.30 or latest
References
https://labs.sucuri.net/vulnerabilities-digest-january-2020/
https://plugins.svn.wordpress.org/ultimate-faqs/trunk/readme.txt
Related Vulnerabilities
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Oracle Database Server Improper Authentication Vulnerability (CVE-2012-3137)
Apache HTTP Server Improper Input Validation Vulnerability (CVE-2017-9788)
WordPress Plugin ARS Reg Secure Cross-Site Scripting (1.1)
Undertow Insertion of Sensitive Information into Log File Vulnerability (CVE-2019-10212)