An issue was discovered in includes/specials/SpecialMovePage.php in MediaWiki before 1.39.7, 1.40.x before 1.40.3, and 1.41.x before 1.41.1. If a user with the necessary rights to move the page opens Special:MovePage for a page with tens of thousands of subpages, then the page will exceed the maximum request time, leading to a denial of service.
{
"versions": [
{
"introduced": "0"
},
{
"fixed": "1.39.7"
},
{
"introduced": "1.40.0"
},
{
"fixed": "1.40.3"
},
{
"introduced": "1.41.0"
},
{
"fixed": "1.41.1"
}
]
}