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CVE-2019-12471: MediaWiki Cross-site Scripting (XSS)

May 24, 2022 (updated May 15, 2024)

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.

References

  • github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-12471.yaml
  • github.com/advisories/GHSA-2rm7-xxx8-35jh
  • github.com/wikimedia/mediawiki
  • lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html
  • nvd.nist.gov/vuln/detail/CVE-2019-12471
  • phabricator.wikimedia.org/T207603
  • seclists.org/bugtraq/2019/Jun/12
  • www.debian.org/security/2019/dsa-4460

Code Behaviors & Features

Detect and mitigate CVE-2019-12471 with GitLab Dependency Scanning

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Affected versions

All versions starting from 1.27.0 before 1.27.6, all versions starting from 1.30.0 before 1.30.2, all versions starting from 1.31.0 before 1.31.2

Fixed versions

  • 1.27.6
  • 1.30.2
  • 1.31.2

Solution

Upgrade to versions 1.27.6, 1.30.2, 1.31.2 or above.

Impact 6.1 MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Source file

packagist/mediawiki/core/CVE-2019-12471.yml

Spotted a mistake? Edit the file on GitLab.

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