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CVE-2019-12472

Published: 10 July 2019

An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

Priority

Medium

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
mediawiki
Launchpad, Ubuntu, Debian
bionic Needed

cosmic Ignored
(end of life)
disco Ignored
(end of life)
eoan
Released (1:1.31.2-1)
focal
Released (1:1.31.2-1)
trusty Does not exist

groovy
Released (1:1.31.2-1)
hirsute
Released (1:1.31.2-1)
kinetic
Released (1:1.31.2-1)
lunar
Released (1:1.31.2-1)
impish
Released (1:1.31.2-1)
jammy
Released (1:1.31.2-1)
upstream
Released (1:1.31.2-1)
xenial Does not exist

mantic
Released (1:1.31.2-1)

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact High
Availability impact None
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N