Description
WordPress Plugin Multi Step Form is prone to multiple cross-site scripting vulnerabilities because it fails to properly sanitize user-supplied input. An attacker may leverage these issues 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 Multi Step Form version 1.2.5 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 1.2.6 or latest
References
https://hackpuntes.com/cve-2018-14430-wordpress-plugin-multi-step-form-125-multiples-xss-reflejados/
https://ansawaf.blogspot.com/2018/10/cve-2018-14846-multiple-stored-xss-in.html
https://plugins.svn.wordpress.org/multi-step-form/trunk/readme.txt
Related Vulnerabilities
WebLogic Deserialization of Untrusted Data Vulnerability (CVE-2020-9548)
Elgg Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2011-3733)
Apache HTTP Server Permissions, Privileges, and Access Controls Vulnerability (CVE-2015-3185)
WebLogic Observable Discrepancy Vulnerability (CVE-2019-3740)
WordPress Plugin WordPress Download Manager Cross-Site Request Forgery (3.2.12)