๐Ÿ” CVE Alert

CVE-2024-23176

MEDIUM 5.4
CVSS Score
5.4
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-79
Vendor mediawiki
Product massmessage
Published Sep 14, 2026
Last Updated Sep 14, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Affected Versions

MediaWiki / MassMessage
0 < 1.40.2

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
lists.wikimedia.org: https://lists.wikimedia.org/hyperkitty/list/[email protected]/message/TDBUBCCOQJUT4SCHJNPHKQNPBUUETY52/ phabricator.wikimedia.org: https://phabricator.wikimedia.org/T347742