Medium
Security advisory
Cross-site scripting (XSS) vulnerability in the CSS user subpage preview feature 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 the edit box in Special:MyPage/common.css.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2016-6333
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 05:55 UTC · Revision 1
Source evidence
Cross-site scripting (XSS) vulnerability in the CSS user subpage preview feature 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 the edit box in Special:MyPage/common.css.
osv:CVE-2016-6333
Complete source record
{
"id": "dd5264e5cf68266d9e290bc2a67c759290050fd36bc0236e00285c220b75e624",
"url": "https://osv.dev/vulnerability/CVE-2016-6333",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2016-6333",
"summary": "Cross-site scripting (XSS) vulnerability in the CSS user subpage preview feature 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 the edit box in Special:MyPage/common.css.",
"evidence": "osv:CVE-2016-6333",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2016-6333",
"aliases": [
"CVE-2016-6333"
],
"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-2016-6333.json"
}
}
],
"modified": "2026-10-24T10:30:33.871647501Z",
"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/T133147"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2016-6333",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 433397,
"published_at": "2017-04-20T17:59:00.633+00:00"
}