What is the CVSS score of CVE-2025-6594?

CVE-2025-6594 has a CVSS 3.1 base score of 4.7 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Mediawiki are affected by CVE-2025-6594?

CVE-2025-6594 presents moderate security risk, a cross-site scripting vulnerability rated CVSS 4.7. Attackers could inject scripts to steal sessions or perform actions as authenticated users.

How to fix or mitigate CVE-2025-6594?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

Mediawiki CVE-2025-6594

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-02-02 c4f26cc8-17ff-4c99-b5e2-38fc1793eacc

Mediawiki XSS Red Hat

4.7

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

4.7 MEDIUM

AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Red Hat

8.1 HIGH

qualitative

Primary rating from NVD.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 22:01 vuln.today

CVE Published

Feb 02, 2026 - 23:16 nvd

MEDIUM 4.7

DescriptionCVE.org

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.

AnalysisAI

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects from 1.27.0. 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.

Affected ProductsAI

Product: from 1.27.0. Versions: up to 1.39.13.

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Vendor StatusVendor

CVE-2025-6594 vulnerability details – vuln.today

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Mediawiki CVE-2025-6594

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

Technical ContextAI

Affected ProductsAI

RemediationAI

Vendor StatusVendor

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External POC / Exploit Code