Wikimedia MediaWiki allows CSRF

HIGH 8.8CVE-2019-12466 · GHSA-27fw-r78j-h898 · Published 10/07/2019 · updated 17/06/2026

In short

CVE-2019-12466 is a HIGH (CVSS 8.8) vulnerability affecting mediawiki/core, mediawiki (mediawiki).
Chance of exploitation in the next 30 days (EPSS): 0.84%, higher than 58.0% of all vulnerabilities.
Fix: update to 1.27.6, 1.30.2, 1.31.2, 1.32.2 or later.

Package	Affected versions	Patched versions
mediawiki/core Packagist	`≥ 1.27.0, < 1.27.6≥ 1.30.0, < 1.30.2≥ 1.31.0, < 1.31.2≥ 1.32.0, < 1.32.2`	`1.27.61.30.21.31.21.32.2`
mediawiki mediawiki	`≤ 1.32.1`	No fix yet

Wikimedia MediaWiki through 1.32.1 allows CSRF in logout feature.

NVD description

Wikimedia MediaWiki through 1.32.1 allows CSRF.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.

Package

Affected versions

Patched versions

Packagist

≥ 1.27.0, < 1.27.6≥ 1.30.0, < 1.30.2≥ 1.31.0, < 1.31.2≥ 1.32.0, < 1.32.2

1.27.61.30.21.31.21.32.2

≤ 1.32.1

No fix yet

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