CVE-2025-61638 — Cross-site Scripting in Foundation Mediawiki

CWE-79 — Cross-site Scripting5 documents5 sources
Severity
0.0N/ANVD
EPSS
0.0%
top 99.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Wikimedia Foundation MediawikiWikimedia Foundation ParsoidMediawiki+2 more
Timeline
PublishedFeb 3

Description

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.

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N

Affected Packages6 packages

▶CVEListV5wikimedia_foundation/parsoid* — 0.16.6, 0.20.4, 0.21.1
▶CVEListV5wikimedia_foundation/mediawiki* — 1.39.14, 1.43.4, 1.44.1
▶NVDwikimedia/parsoid< 0.16.6+2
▶debiandebian/mediawiki< mediawiki 1:1.39.17-1~deb12u1 (bookworm)
▶NVDmediawiki/mediawiki1.39.15 — 1.43.4+2

🔴Vulnerability Details

2
GHSA
GHSA-mq9h-r82m-hvhc: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia↗2026-02-03
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OSV
CVE-2025-61638: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki, Wikimedia↗2026-02-03
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📋Vendor Advisories

1
Debian
CVE-2025-61638: mediawiki - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site ...↗2025
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🕵️Threat Intelligence

1
Wiz
CVE-2025-61638 Impact, Exploitability, and Mitigation Steps | Wiz↗
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