Medium
Security advisory
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid. This vulnerability is associated with program files includes/parser/Sanitizer.Php, src/Core/Sanitizer.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1; Parsoid: from * before 0.16.6, 0.20.4, 0.21.1.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2025-61638
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 06:15 UTC · Revision 1
Source evidence
Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid. This vulnerability is associated with program files includes/parser/Sanitizer.Php, src/Core/Sanitizer.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1; Parsoid: from * before 0.16.6, 0.20.4, 0.21.1.
osv:CVE-2025-61638
Complete source record
{
"id": "659781368713a9bcd5fd29b8abab7adacfc9a2effd1a891fa82f0dfbcfd351ef",
"url": "https://osv.dev/vulnerability/CVE-2025-61638",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "CVE-2025-61638",
"summary": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia Foundation Parsoid. This vulnerability is associated with program files includes/parser/Sanitizer.Php, src/Core/Sanitizer.Php. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1; Parsoid: from * before 0.16.6, 0.20.4, 0.21.1.",
"evidence": "osv:CVE-2025-61638",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2025-61638",
"aliases": [
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],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"
}
],
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],
"modified": "2026-10-24T10:30:37.349354716Z",
"provider": "osv",
"references": [
"https://phabricator.wikimedia.org/T401099"
],
"provider_metadata": {}
},
"related_cves": [
{
"value": "CVE-2025-61638",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 434204,
"published_at": "2026-02-03T00:16:09.617+00:00"
}