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CVE-2019-16738: MediaWiki information disclosure

May 24, 2022 (updated May 15, 2024)

In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.

References

  • github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-16738.yaml
  • github.com/advisories/GHSA-7hwr-f745-5rwq
  • github.com/wikimedia/mediawiki
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO
  • lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7OMG3BMUHGWTAPYTK2NXM6CXF6FYLOUO
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QBAOLXETM5BOYQG6OQVHGB2LNLZUXVN6
  • nvd.nist.gov/vuln/detail/CVE-2019-16738
  • phabricator.wikimedia.org/T230402
  • seclists.org/bugtraq/2019/Oct/32
  • www.debian.org/security/2019/dsa-4545

Code Behaviors & Features

Detect and mitigate CVE-2019-16738 with GitLab Dependency Scanning

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Affected versions

All versions starting from 1.31.0 before 1.31.4, all versions starting from 1.32.0 before 1.32.4, all versions starting from 1.33.0 before 1.33.1

Fixed versions

  • 1.31.4
  • 1.32.4
  • 1.33.1

Solution

Upgrade to versions 1.31.4, 1.32.4, 1.33.1 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Learn more about CVSS

Weakness

  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-862: Missing Authorization

Source file

packagist/mediawiki/core/CVE-2019-16738.yml

Spotted a mistake? Edit the file on GitLab.

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