An issue was discovered in the Oauth extension for MediaWiki through 1.35.2. It did not validate the oarcversion (aka oauthregisteredconsumer.oarcversion) parameter's length.
{
"cpes": [
"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*"
],
"severity": "High"
}