CVE-2025-6594 — Cross-site Scripting in Foundation Mediawiki

CWE-79 — Cross-site Scripting6 documents6 sources
Severity
0.0N/ANVD
EPSS
0.0%
top 99.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Wikimedia Foundation MediawikiMediawikiDebian Mediawiki
Timeline
PublishedFeb 2
Latest updateFeb 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.Special.Apisandbox/ApiSandbox.Js. This issue affects MediaWiki: from 1.27.0 before 1.39.13, 1.42.7 1.43.2, 1.44.0.

CVSS vector

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

Affected Packages3 packages

▶CVEListV5wikimedia_foundation/mediawiki1.27.0 — 1.39.13, 1.42.7 1.43.2, 1.44.0
▶debiandebian/mediawiki< mediawiki 1:1.39.13-1~deb12u1 (bookworm)
▶Debianmediawiki/mediawiki< 1:1.35.13-1+deb11u4+3

🔴Vulnerability Details

2
GHSA
GHSA-f8f3-5c83-vh78: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki↗2026-02-03
▶
OSV
CVE-2025-6594: Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki↗2026-02-02
▶

📋Vendor Advisories

2
Red Hat
MediaWiki: MediaWiki: Cross-site Scripting vulnerability via improper input neutralization↗2026-02-02
▶
Debian
CVE-2025-6594: mediawiki - Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site ...↗2025
▶

🕵️Threat Intelligence

1
Wiz
CVE-2025-6594 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2025-6594 — Cross-site Scripting | cvebase