CVE-2020-10534

—

CVSS 3.1

9.8 critical

EPSS

1%p67

Published

Mar 12, 2020 (Mar 12, 2020)

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.

Vendors: mediawiki
Products: mediawiki
Weakness: CWE-863
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.2%)

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