CVE-2025-61640 — Cross-site Scripting in Foundation Mediawiki

CWE-79 — Cross-site Scripting6 documents6 sources
Severity
0.0N/ANVD
EPSS
0.0%
top 99.63%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Wikimedia Foundation MediawikiMediawikiDebian Mediawiki
Timeline
PublishedFeb 3

Description

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files resources/src/mediawiki.Rcfilters/ui/RclToOrFromWidget.Js. This issue affects MediaWiki: from * before 1.39.14, 1.43.4, 1.44.1.

CVSS vector

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

Affected Packages4 packages

▶CVEListV5wikimedia_foundation/mediawiki* — 1.39.14, 1.43.4, 1.44.1
▶debiandebian/mediawiki< mediawiki 1:1.39.17-1~deb12u1 (bookworm)
▶NVDmediawiki/mediawiki1.39.15 — 1.43.4+2
▶Debianmediawiki/mediawiki< 1:1.35.13-1+deb11u5+3

🔴Vulnerability Details

2
GHSA
GHSA-39fr-2fph-j42r: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki↗2026-02-03
▶
OSV
CVE-2025-61640: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki↗2026-02-03
▶

📋Vendor Advisories

2
Red Hat
MediaWiki: MediaWiki: Arbitrary code execution via Cross-site Scripting (XSS)↗2026-02-02
▶
Debian
CVE-2025-61640: mediawiki - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site ...↗2025
▶

🕵️Threat Intelligence

1
Wiz
CVE-2025-61640 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶