An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. ContentModelChange does not check if a user has correct permissions to create and set the content model of a nonexistent page.
{
    "cpes": [
        "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
}