CVE-2026-100245 - Vulnerability Details - OpenCVE

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS.

This issue affects Mediawiki - Wikibase Extension: from * before 1.46.1, 1.45.5, 1.43.10.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00155.

Exploitation none

Automatable no

Technical Impact partial

No data.

No data.

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OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

No data.

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/If871fa7684d42dae057c0517d4a17132cd7aefeb
https://phabricator.wikimedia.org/T432877

History

Wed, 30 Sep 2026 21:30:00 +0000

Type	Values Removed	Values Added
Metrics		cvssV3_1 `{'score': 6.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Tue, 29 Sep 2026 17:00:00 +0000

Type	Values Removed	Values Added
Description		Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - Wikibase Extension allows Stored XSS. This issue affects Mediawiki - Wikibase Extension: from * before 1.46.1, 1.45.5, 1.43.10.
Title		Stored XSS on Wikibase Special:SetSiteLink via unescaped system message
Weaknesses		CWE-79
References		https://gerrit.wikimedia.org/r/q/If871fa7684d42dae057c0517d4a17132cd7aefeb https://phabricator.wikimedia.org/T432877

Projects

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MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-09-29T16:52:54.809Z

Updated: 2026-09-30T20:43:25.148Z

Reserved: 2026-09-25T16:03:15.841Z

Link: CVE-2026-100245

Vulnrichment

Updated: 2026-09-30T20:43:20.392Z

NVD

Status : Awaiting Analysis

Published: 2026-09-29T17:17:01.567

Modified: 2026-09-30T21:16:53.610

Link: CVE-2026-100245

Redhat

No data.

OpenCVE Enrichment

Updated: 2026-09-30T23:45:09Z

Weaknesses

CWE-79

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