CVE-2025-6589
With MultiBlocks enabled and a user who is suppressed via a MultiBlock, a user without 'hideuser' can see the hidden username in the BlockList
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
Vulnerability in Wikimedia Foundation MediaWiki. This vulnerability is associated with program files includes/specials/pagers/BlockListPager.Php. This issue affects MediaWiki: >= 1.42.0.
| Vendor | wikimedia foundation |
| Product | mediawiki |
| Published | Feb 2, 2026 |
| Last Updated | Mar 3, 2026 |
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Affected Versions
Wikimedia Foundation / MediaWiki
>= 1.42.0