# Exploit Title: Alkacon OpenCMS 15.0 - Multiple Cross-Site Scripting# Date: 1/07/2023# Exploit Author: tmrswrr# Vendor Homepage: http://www.opencms.org# Software Link: https://github.com/alkacon/opencms-core# Version: v15.0POC:1 ) Login in demo page , go to this urlhttps://demo.opencms.org/workplace#!explorer/8b72b2fe-180f-11ee-b326-0242ac11002b!!/sites/livedemo!!/.galleries/livedemo/!!2 ) Click /.galleries/ , after right click any png file , open gallery, write in search button this payload3 ) You will