CVE-2026-103051 - Vulnerability Details - OpenCVE

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralNotice extension allows Stored XSS. This issue affects Mediawiki - CentralNotice extension: 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.

Exploitation none

Automatable no

Technical Impact partial

Vendors	Products
Wikimedia	Mediawiki - Centralnotice Extension

No data.

No data.

References

Link	Providers
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CentralNotice/+/1346103
https://phabricator.wikimedia.org/T432419

History

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

Type	Values Removed	Values Added
First Time appeared		Wikimedia Wikimedia mediawiki - Centralnotice Extension
Vendors & Products		Wikimedia Wikimedia mediawiki - Centralnotice Extension

Wed, 30 Sep 2026 20:30:00 +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 23:30:00 +0000

Type	Values Removed	Values Added
Description		Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - CentralNotice extension allows Stored XSS. This issue affects Mediawiki - CentralNotice extension: before 1.46.1, 1.45.5, 1.43.10.
Title		Stored i18n XSSs in CentralNotice
Weaknesses		CWE-79
References		https://gerrit.wikimedia.org/r/c/mediawiki/extensions/CentralNotice/+/1346103 https://phabricator.wikimedia.org/T432419

MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published: 2026-09-29T23:13:32.747Z

Updated: 2026-09-30T20:01:03.371Z

Reserved: 2026-09-29T22:29:41.526Z

Link: CVE-2026-103051

Vulnrichment

Updated: 2026-09-30T18:14:05.624Z

NVD

Status : Awaiting Analysis

Published: 2026-09-30T00:16:35.473

Modified: 2026-09-30T21:17:08.430

Link: CVE-2026-103051

Redhat

No data.

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