Medium
Security advisory
Cross-site scripting (XSS) vulnerability in the Parser::replaceInternalLinks2 method in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving replacement of percent encoding in unclosed internal links.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-6334
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 08:19 UTC · Revision 1
Source evidence
Cross-site scripting (XSS) vulnerability in the Parser::replaceInternalLinks2 method in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving replacement of percent encoding in unclosed internal links.
osv:CVE-2016-6334
Complete source record
{
"id": "b4456247e54c6b478bf00796f095a7c773f7454c80760653e14111fecda9b678",
"url": "https://osv.dev/vulnerability/CVE-2016-6334",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-6334",
"summary": "Cross-site scripting (XSS) vulnerability in the Parser::replaceInternalLinks2 method in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving replacement of percent encoding in unclosed internal links.",
"evidence": "osv:CVE-2016-6334",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-6334",
"aliases": [
"CVE-2016-6334"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/wikimedia/mediawiki",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"last_affected": "1b1588f892b81983d5cd93bea6f5b5d652b2cdf5"
},
{
"introduced": "365e22ee61035f953b47387af92ef832f09d5982"
},
{
"last_affected": "758cd9d2371d529450448cdf7eb2f1f6e099cfee"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"last_affected": "1.23.14"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:1.26.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.26.0"
},
{
"last_affected": "1.26.0"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:1.26.1:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.26.1"
},
{
"last_affected": "1.26.1"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:1.26.2:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.26.2"
},
{
"last_affected": "1.26.2"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:1.26.3:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.26.3"
},
{
"last_affected": "1.26.3"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:1.26.4:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.26.4"
},
{
"last_affected": "1.26.4"
}
],
"source": "CPE_STRING"
},
{
"cpe": "cpe:2.3:a:mediawiki:mediawiki:1.27.0:*:*:*:*:*:*:*",
"range": [
{
"introduced": "1.27.0"
},
{
"last_affected": "1.27.0"
}
],
"source": "CPE_STRING"
}
]
}
}
],
"versions": [
"1.26.0",
"1.26.1",
"1.26.2",
"1.26.3",
"1.26.4",
"1.27.0",
"1.23.14",
"1.27.0-rc.1",
"1.27.0-rc.0",
"1.23.13",
"1.23.12",
"1.23.11",
"1.23.10",
"1.23.9",
"1.23.8",
"1.23.7",
"test-hashar-for-ci",
"1.23.6",
"1.23.5",
"1.23.4",
"1.23.3",
"1.23.2",
"1.23.1",
"1.23.0",
"1.23.0-rc.3",
"1.23.0-rc.2",
"1.23.0-rc.1",
"1.23.0rc0",
"1.6.0",
"1.5.0beta4",
"1.5.0beta3",
"1.5.0beta2",
"1.5.0beta1",
"1.5.0alpha2",
"1.5.0alpha1",
"1.3.0beta1",
"1.1.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-6334.json"
}
}
],
"modified": "2026-10-24T10:31:05.811371535Z",
"provider": "osv",
"references": [
"https://bugzilla.redhat.com/show_bug.cgi?id=1369613",
"https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html",
"https://phabricator.wikimedia.org/T137264"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-6334",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 440838,
"published_at": "2017-04-20T17:59:00.663+00:00"
}