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GHSA-7mqg-5fgh-xh4rhigh7.5

MediaWiki Incorrect Access Control vulnerability

Impact

An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

Source excerpt · OSV

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

mediawiki/core Packagist
Affected rangeRecorded fix
From 1.18.0 before 1.27.6Ecosystem versions1.27.6
From 1.30.0 before 1.30.2Ecosystem versions1.30.2
From 1.31.0 before 1.31.2Ecosystem versions1.31.2
From 1.32.0 before 1.32.2Ecosystem versions1.32.2

Version evidence: OSV · GHSA-7mqg-5fgh-xh4r

View original version evidence (57 explicit versions)

Original source description

An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

References