Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki CookieConsent extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki CookieConsent extension: from v0.1.0 before v2.0.0.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements Present

User Interaction Passive

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0007.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
The Wikimedia Foundation MediaWiki CookieConsent extension unaffected
Version Status Constraints
v2.0.0 unaffected —
v0.1.0 affected < v2.0.0

No data.

No data.

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Vendors Products
Mediawiki Subscribe
Cookieconsent Subscribe
Mediawiki Subscribe

Project Subscriptions

Vendors Products
Mediawiki Subscribe
Cookieconsent Subscribe
Mediawiki Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://phabricator.wikimedia.org/T404475 cve-icon cve-icon
History

Thu, 23 Oct 2025 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki cookieconsent
Mediawiki mediawiki
Vendors & Products Mediawiki
Mediawiki cookieconsent
Mediawiki mediawiki

Wed, 22 Oct 2025 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 22 Oct 2025 15:45:00 +0000

Type Values Removed Values Added
Description Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation MediaWiki CookieConsent extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki CookieConsent extension: from v0.1.0 before v2.0.0.
Title The CookieConsent extension does not properly use reserved data attributes, thus introducing potential XSS vectors
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 2.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/S:N/AU:N/R:U/V:C/RE:M/U:Amber'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2025-10-22T15:46:23.973Z

Reserved: 2025-10-17T22:01:52.601Z

Link: CVE-2025-62659

cve-icon Vulnrichment

Updated: 2025-10-22T15:46:13.912Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-22T16:15:45.650

Modified: 2025-10-22T21:12:32.330

Link: CVE-2025-62659

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-23T09:59:08Z

Weaknesses