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.
History

Thu, 17 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
First Time appeared Mediawiki
Mediawiki massmessage
Vendors & Products Mediawiki
Mediawiki massmessage

Tue, 15 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Title MassMessage Extension XSS via i18n Key

Mon, 14 Sep 2026 23:00:00 +0000

Type Values Removed Values Added
Title MassMessage Extension Cross‑Site Scripting via i18n Key in MediaWiki

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 14 Sep 2026 12:45:00 +0000

Type Values Removed Values Added
Title MassMessage Extension Cross‑Site Scripting via i18n Key in MediaWiki

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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-14T00:00:00.000Z

Updated: 2026-09-14T15:23:47.638Z

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

Link: CVE-2024-23176

cve-icon Vulnrichment

Updated: 2026-09-14T15:23:23.028Z

cve-icon NVD

Status : Awaiting Analysis

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

Modified: 2026-09-28T14:10:00.213

Link: CVE-2024-23176

cve-icon Redhat

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