CVE-2024-23176
Medium
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.
SeverityMedium
CVSS5.4
Exploit probability—
Product
MassMessage
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- MediaWiki MassMessage1.40.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MediaWiki MassMessage | v < 1.40.2 | 1.40.2 |
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