MediaWiki before 1.19.4 and 1.20.x before 1.20.3 allows remote attackers to cause a denial of service (application crash) by sending a specially crafted request.
[
{
"product": "mediawiki",
"vendor": "mediawiki",
"versions": [
{
"status": "affected",
"version": "1.19.4"
},
{
"status": "affected",
"version": "1.20.3"
}
]
}
]