Semantic MediaWiki 7.3.1 before 7.4.1 contains an incorrect authorization vulnerability in EditProtectionUpdater::userMayChangeProtection() that checks protection changes against the page's latest revision author. Editors can add {{#set:Is edit protected=false}} to a transcluded template, removing administrator edit and move protection logged under the administrator's name.
{
"cna_assigner": "VulnCheck",
"cwe_ids": [
"CWE-863"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/126xxx/CVE-2026-126566.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "7.3.1"
},
{
"fixed": "7.4.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
},
{
"range": [
{
"fixed": "32ca6d8fc75735aa7a2ecc573886391da126da9b"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "7.4.1",
"range": [
{
"fixed": "bcc3cbf4884f0474232a68d3eff060f93a506379"
}
],
"source": "REFERENCES_TAG"
}
]
}