7.5
Advisory Published
Updated

CVE-2020-12051

First published: Tue Apr 21 2020(Updated: )

The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=globaluserinfo&guiuser= request. In other words, the information can be retrieved via the action API even though access would be denied when simply visiting wiki/Special:CentralAuth in a web browser.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
MediaWiki MediaWiki

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Frequently Asked Questions

  • What is CVE-2020-12051?

    CVE-2020-12051 is a vulnerability in the CentralAuth extension through REL1_34 for MediaWiki that allows remote attackers to obtain sensitive hidden account information.

  • What software is affected by CVE-2020-12051?

    The Mediawiki software is affected by CVE-2020-12051.

  • How can remote attackers exploit CVE-2020-12051?

    Remote attackers can exploit CVE-2020-12051 by sending a specially crafted request to api.php?action=query&meta=globaluserinfo&guiuser=.

  • What is the severity of CVE-2020-12051?

    CVE-2020-12051 has a severity rating of high.

  • How can I fix CVE-2020-12051?

    To fix CVE-2020-12051, you should upgrade the CentralAuth extension to a version that has the fix.

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