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CVE-2019-12468 — Vulnerability in mediawiki/core — CVE Details

CRITICAL

Wikimedia MediaWiki Incorrect Access Control vulnerability

Published May 24, 2022Updated May 19, 2024Source: osv

Summary

An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.27.0 through 1.32.1. Directly POSTing to Special:ChangeEmail would allow for bypassing re-authentication, allowing for potential account takeover.

Advisory Timeline

  • First published May 24, 2022 (1602 days ago).
  • Last revised May 19, 2024 — 725 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Composer
Update mediawiki/core to 1.32.2 or later
composer require "mediawiki/core:^1.32.2"
Composer
Update mediawiki/core to 1.31.2 or later
composer require "mediawiki/core:^1.31.2"
Composer
Update mediawiki/core to 1.30.2 or later
composer require "mediawiki/core:^1.30.2"
Composer
Update mediawiki/core to 1.27.6 or later
composer require "mediawiki/core:^1.27.6"

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (4)

Affects 1 ecosystem: packagist (1).

PackageEcosystemAffectedFixed In
mediawiki/core
packagist
1.32.0, 1.32.11.32.2
mediawiki/core
packagist
1.31.0, 1.31.11.31.2
mediawiki/core
packagist
1.30.0, 1.30.11.30.2
mediawiki/core
packagist
1.27.0, 1.27.1, 1.27.2, 1.27.3 (+2 more)1.27.6

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

References

Frequently Asked Questions

What is CVE-2019-12468?
Wikimedia MediaWiki Incorrect Access Control vulnerability This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2019-12468?
CVE-2019-12468 affects mediawiki/core. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2019-12468 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-wrhx-3pxr-6vgg

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