An issue was discovered in MediaWiki before 1.37.3 and 1.38.x before 1.38.1. The contributions-title, used on Special:Contributions, is used as page title without escaping. Hence, in a non-default configuration where a username contains HTML entities, it won't be escaped.
{
"cna_assigner": "mitre",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "1.37.3"
},
{
"introduced": "1.38.x"
},
{
"fixed": "1.38.1"
}
],
"source": "DESCRIPTION"
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/34xxx/CVE-2022-34912.json"
}{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.37.3"
},
{
"introduced": "1.38.0-NA"
},
{
"last_affected": "1.38.0-NA"
}
],
"cpe": [
"cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"cpe:2.3:a:mediawiki:mediawiki:1.38.0:-:*:*:*:*:*:*"
],
"source": [
"CPE_RANGE",
"CPE_STRING"
]
}