# Exploit Title: WordPress Plugin Videos sync PDF 1.7.4 - Stored Cross Site Scripting (XSS)# Google Dork: inurl:/wp-content/plugins/video-synchro-pdf/# Date: 2022-04-13# Exploit Author: UnD3sc0n0c1d0# Vendor Homepage: http://www.a-j-evolution.com/# Software Link: https://downloads.wordpress.org/plugin/video-synchro-pdf.1.7.4.zip# Category: Web Application# Version: 1.7.4# Tested on: CentOS / WordPress 5.9.3# CVE : N/A# 1. Technical Description:
The plugin does not properly sanitize the nom, pdf, mp4, webm and ogg parameters, allowing
potentially dangerous characters to be inserted. This includes the reported payload, which
triggers a persistent Cross-Site Scripting (XSS).# 2. Proof of Concept (PoC):
a. Install and activate version 1.7.4 of the plugin.
b. Go to the plugin options panel (http://[TARGET]/wp-admin/admin.php?page=aje_videosyncropdf_videos).
c. Open the "Video example"or create a new one (whichever you prefer).
d. Change or add in some of the displayed fields (Name, PDF file, MP4 video, WebM video or OGG video)
the following payload:
" autofocus onfocus=alert(/XSS/)>.
e. Save the changes."Edit" button.
f. JavaScript will be executed and a popup with the text "XSS" will be displayed.
Note: This change will be permanent until you modify the edited field.
