Description
Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in The Wikimedia Foundation Mediawiki - MassMessage extension allows Stored XSS.

This issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.
Published: 2026-09-29
Score: 6.1 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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

Type Values Removed Values Added
First Time appeared Wikimedia
Wikimedia mediawiki - Massmessage Extension
Vendors & Products Wikimedia
Wikimedia mediawiki - Massmessage 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 - MassMessage extension allows Stored XSS. This issue affects Mediawiki - MassMessage extension: before 1.46.1, 1.45.5, 1.43.10.
Title Stored i18n XSS in MassMessage
Weaknesses CWE-79
References

Subscriptions

Wikimedia Mediawiki - Massmessage Extension
cve-icon MITRE

Status: PUBLISHED

Assigner: wikimedia-foundation

Published:

Updated: 2026-09-30T20:01:03.537Z

Reserved: 2026-09-29T22:29:40.415Z

Link: CVE-2026-103050

cve-icon Vulnrichment

Updated: 2026-09-30T18:14:51.770Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-30T00:16:35.370

Modified: 2026-09-30T21:17:08.270

Link: CVE-2026-103050

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-30T23:15:14Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')