Description
Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Wikimedia Foundation CheckUser.
This issue affects CheckUser: from 1.45.0 before 1.45.2.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Wikimedia Foundation | CheckUser | 1.45.0 – < 1.45.2 | 1.45.2 |
Advisories 1
- WID-SEC-2026-0946 MediaWiki: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 21, 2026