An issue was discovered in WikibaseLexeme in MediaWiki before 1.39.6, 1.40.x before 1.40.2, and 1.41.x before 1.41.1. Loading Special:MergeLexemes will (attempt to) make an edit that merges the from-id to the to-id, even if the request was not a POST request, and even if it does not contain an edit token.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/34xxx/CVE-2024-34502.json",
"cna_assigner": "mitre",
"unresolved_ranges": [
{
"extracted_events": [
{
"fixed": "1.39.6"
},
{
"introduced": "1.40.x"
},
{
"fixed": "1.40.2"
},
{
"introduced": "1.41.x"
},
{
"fixed": "1.41.1"
}
],
"source": "DESCRIPTION"
}
]
}{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.39.6"
},
{
"introduced": "1.40.0"
},
{
"fixed": "1.40.2"
},
{
"introduced": "1.41.0"
},
{
"fixed": "1.41.1"
}
],
"source": "CPE_RANGE"
}