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Arbitrary File Read Affecting mediawiki/core package, versions <1.35.5 >=1.36.0-rc.0, <1.36.3 >=1.37.0-rc.0, 1.37.1

0.0
high

Snyk CVSS

    Attack Complexity Low
    Integrity High

    Threat Intelligence

    EPSS 0.07% (29th percentile)
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NVD
6.5 medium
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Red Hat
6.5 medium

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  • Snyk ID SNYK-PHP-MEDIAWIKICORE-2321424
  • published 17 Dec 2021
  • disclosed 17 Dec 2021
  • credit Unknown
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Introduced: 17 Dec 2021

CVE-2021-44857 Open this link in a new tab
CWE-22 Open this link in a new tab

How to fix?

Upgrade mediawiki/core to version 1.35.5, 1.36.3 or higher.

Overview

mediawiki/core is a Free software wiki application developed by the Wikimedia Foundation and others.

Note: This package is not maintained on Packagist anymore, but newer releases exist.

Affected versions of this package are vulnerable to Arbitrary File Read. It is possible to use action=mcrundo followed by action=mcrrestore to replace and read the content of any arbitrary page. This applies to any public wiki or a private wiki that has at least one page set in $wgWhitelistRead.

NOTE: This vulnerability has also been identified as: CVE-2021-44858