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CVE-2021-30156

Published: 9 April 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Special:Contributions can leak that a "hidden" user exists.

Priority

Medium

Cvss 3 Severity Score

4.3

Score breakdown

Status

Package Release Status
mediawiki
Launchpad, Ubuntu, Debian
groovy Ignored
(end of life)
hirsute Ignored
(end of life)
trusty Does not exist

upstream
Released (1:1.35.2-1)
xenial Does not exist

bionic Needed

focal Needed

jammy Needed

impish Ignored
(end of life)
kinetic Ignored
(end of life, was needed)
lunar Ignored
(end of life, was needed)
mantic Needed

Severity score breakdown

Parameter Value
Base score 4.3
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N