The VideoZen plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to and including 1.0.1. This is due to insufficient input sanitization and output escaping in the videozen_conf() function. The 'lang' POST parameter is stored directly via update_option() without any sanitization, and later echoed inside a <textarea> element without applying esc_textarea() or any equivalent escaping function.
This makes it possible for authenticated attackers with Administrator-level access and above to inject arbitrary web scripts into the plugin settings page that will execute whenever any user accesses that page.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://plugins.trac.wordpress.org/browser/videozen/tags/1.0.1/videozen-conf.ph…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/videozen/tags/1.0.1/videozen-conf.ph…
security@wordfence.com
https://plugins.trac.wordpress.org/browser/videozen/trunk/videozen-conf.php#L24
security@wordfence.com
https://plugins.trac.wordpress.org/browser/videozen/trunk/videozen-conf.php#L69
security@wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/47bcd04b-a479-49f2-94…
security@wordfence.com