4.7

CVE-2025-6594: wikimedia foundation mediawiki Cross-site Scripting

CVSS: 4.7v3.1MediumDeferred
AliasesUBUNTU-CVE-2025-6594DEBIAN-CVE-2025-6594
Published 02-02-2026Last modified 03-02-2026
Open JSON

Vulnerability summary

CVE-2025-6594 is a medium (CVSS 4.7) Cross-site Scripting vulnerability in wikimedia foundation mediawiki. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 22.9% of scored vulnerabilities.

Overall risk
19/100
0100
Low · default modelHow is this calculated?
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 2
DLA-4249-1DSA-5957-1

Timeline

  1. 02-02-2026
    PublishedVulnerability first disclosed.
  2. 03-02-2026
    Last modifiedVulnerability information updated.

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 metrics

7 scores · 4 sources · 2 versions

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.31% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • mediawiki< 1:1.39.13-1~deb12u1 | < 1:1.43.3+dfsg-1
Ubuntu1 product
  • mediawikiAll versions (No fix recorded)
Wikimedia foundation1 product
  • mediawiki≥ 1.27.0, < 1.39.13, 1.42.7 1.43.2, 1.44.0

3 vendors · 3 products

References

7 links