Description
You can rename a core using the following modified URL https://SOLR:PORT/solr/admin/cores?wt=json&indexInfo=false&action=RENAME&core=test_app_shared2_replica2&other=%3Csvg+onload%3Dalert(1)%3E&_=1445468005152. The core becomes inaccessible / unusable. There should be more form validation to the core name assignment