CVE-2020-10534

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-863

Affected software

No affected versions have been published.

Timeline

Published: Mar 12, 2020
Last modified: Jun 17, 2026
NVD status: Modified

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