An issue was discovered in the MassMessage extension in MediaWiki before 1.40.2. For a Special:MassMessage?uselang=x-xss URL, the i18n key massmessage-form-page-help allows XSS.

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Fixes

Solution

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Workaround

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History

Mon, 14 Sep 2026 07:00:00 +0000

Type Values Removed Values Added
Description An issue was discovered in the MassMessage extension in MediaWiki before 1.40.2. For a Special:MassMessage?uselang=x-xss URL, the i18n key massmessage-form-page-help allows XSS.
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-14T06:25:59.602Z

Reserved: 2024-01-12T00:00:00.000Z

Link: CVE-2024-23176

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-14T07:17:16.097

Modified: 2026-09-14T07:17:16.097

Link: CVE-2024-23176

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses