<p>Upgrade <code>Debian:9</code> <code>mediawiki</code> to version 1:1.27.7-1~deb9u1 or higher.</p>

Cross-site Scripting (XSS) Affecting mediawiki package, versions <1:1.27.7-1~deb9u1

Snyk CVSS

Attack Complexity Low

User Interaction Required

Scope Changed

Threat Intelligence

EPSS 0.56% (78^th percentile)

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Snyk ID SNYK-DEBIAN9-MEDIAWIKI-349096
published 9 Jun 2019
disclosed 10 Jul 2019

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Introduced: 9 Jun 2019

CVE-2019-12471 Open this link in a new tab CWE-79 Open this link in a new tab

How to fix?

Upgrade Debian:9 mediawiki to version 1:1.27.7-1~deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream mediawiki package and not the mediawiki package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

Wikimedia MediaWiki 1.30.0 through 1.32.1 has XSS. Loading user JavaScript from a non-existent account allows anyone to create the account, and perform XSS on users loading that script. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.