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CVE-2021-30154

Published: 6 April 2021

An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. On Special:NewFiles, all the mediastatistics-header-* messages are output in HTML unescaped, leading to XSS.

Priority

Medium

Cvss 3 Severity Score

6.1

Score breakdown

Status

Package Release Status
mediawiki
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(code not present)
focal Needed

groovy Not vulnerable
(code not present)
hirsute Not vulnerable
(code not present)
impish Not vulnerable
(code not present)
jammy Not vulnerable
(code not present)
kinetic Not vulnerable
(code not present)
lunar Not vulnerable
(code not present)
mantic Not vulnerable
(code not present)
trusty Does not exist

upstream Needs triage

xenial Does not exist

Severity score breakdown

Parameter Value
Base score 6.1
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Changed
Confidentiality Low
Integrity impact Low
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N