Zero-Day Advisory

Fortinet Discovers WordPress WP Video Lightbox Plugin Cross-Site Scripting Vulnerability

Summary

Fortinet's FortiGuard Labs has discovered a cross-site scripting (XSS) vulnerability in WordPress WP Video Lightbox Plugin.


Wordpress WP Video Lightbox is a video plugin with over 60,000 active installations. The WordPress Video Lightbox plugin allows you to embed videos on a page using lightbox overlay display.


A stored cross-site scripting vulnerability has been discovered in WP Video Lightbox. The vulnerability exists in the Shortcode functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is caused by insufficient validation of shortcode parameters.

Solutions

FortiGuard Labs released the following FortiGate IPS signature which covers this specific vulnerability:

WordPress.Plugin.WP.Video.Lightbox.XSS
Released Aug 11, 2021

Upgrade to the version 1.9.3 or above.

Timeline

Fortinet reported the vulnerability to Tips & Tricks HQ development team on August 9, 2021.

Tips & Tricks HQ confirmed the vulnerability on August 9, 2021.

Tips & Tricks HQ patched the vulnerability on August 16, 2021.



Acknowledgement

This vulnerability was discovered by Vishnupriya Ilango of Fortinet's FortiGuard Labs.

IPS Subscription

Fortinet customers who subscribe to Fortinet's intrusion prevention (IPS) service should be protected against this vulnerability with the appropriate configuration parameters in place. Fortinet's IPS service is one component of FortiGuard Subscription Services, which also offer comprehensive solutions such as antivirus, Web content filtering and antispam capabilities. These services enable protection against threats on both application and network layers. FortiGuard Services are continuously updated by FortiGuard Labs, which enables Fortinet to deliver a combination of multi-layered security intelligence and true zero-day protection from new and emerging threats. These updates are delivered to all FortiGate, FortiMail and FortiClient products. Fortinet strictly follows responsible disclosure guidelines to ensure optimum protection during a threat's lifecycle.