Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in The Wikimedia Foundation Mediawiki - MultiBoilerplate Extensionmaste allows Stored XSS.This issue affects Mediawiki - MultiBoilerplate Extensionmaste: from master before 1.39.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact Low

Subsequent System Integrity Impact Low

Subsequent System Availability Impact Low

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00091.

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 - MultiBoilerplate Extensionmaste unaffected
Version Status Constraints
master affected < 1.39

No data.

No data.

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Vendors Products
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Multiboilerplate Subscribe

Project Subscriptions

Vendors Products
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Multiboilerplate Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://gerrit.wikimedia.org/r/q/I10e205e3027d4772b2cd9801647fc6c171e4b35b cve-icon cve-icon
https://phabricator.wikimedia.org/T399658 cve-icon cve-icon
History

Tue, 21 Oct 2025 09:45:00 +0000

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

Mon, 20 Oct 2025 20:45:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 20 Oct 2025 18:15:00 +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 - MultiBoilerplate Extensionmaste allows Stored XSS.This issue affects Mediawiki - MultiBoilerplate Extensionmaste: from master before 1.39.
Title Stored XSS through a system message in MultiBoilerplate
Weaknesses CWE-79
References
Metrics cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2025-10-20T20:26:50.425Z

Reserved: 2025-10-20T17:42:38.150Z

Link: CVE-2025-62700

cve-icon Vulnrichment

Updated: 2025-10-20T20:26:43.546Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-20T18:15:40.620

Modified: 2025-10-21T19:31:25.450

Link: CVE-2025-62700

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-10-21T09:39:37Z

Weaknesses