In the GlobalBlocking extension before 2020-03-10 for MediaWiki through 1.34.0, an issue related to IP range evaluation resulted in blocked users re-gaining escalated privileges. This is related to the case in which an IP address is contained in two ranges, one of which is locally disabled.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Mediawiki | — | Upgrade MediaWiki to the latest version | Mar 20, 2020 | Mar 12, 2020 |
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