Special:Ask in Semantic MediaWiki before 4.0.2 allows Reflected XSS.
{
"source": "CPE_FIELD",
"cpe": "cpe:2.3:a:semantic-mediawiki:semantic_mediawiki:*:*:*:*:*:mediawiki:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "4.0.2"
}
]
}