MEDIUM5.3

GHSA-pfm2-mqwj-ggm5

MediaWiki makeCollapsible allows applying event handler to any CSS selector

Quick fix

GHSA-pfm2-mqwj-ggm5 — mediawiki/core: upgrade to the fixed version with the command below.

composer require mediawiki/core:^1.31.7

Details

In MediaWiki before 1.34.1, users can add various Cascading Style Sheets (CSS) classes (which can affect what content is shown or hidden in the user interface) to arbitrary DOM nodes via HTML content within a MediaWiki page. This occurs because jquery.makeCollapsible allows applying an event handler to any Cascading Style Sheets (CSS) selector. There is no known way to exploit this for cross-site scripting (XSS).

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Affected packages

Packagist/mediawiki/core

Introduced in: 1.31.0Fixed in: 1.31.7

Fixcomposer require mediawiki/core:^1.31.7

Packagist/mediawiki/core

Introduced in: 1.33.0Fixed in: 1.33.3

Fixcomposer require mediawiki/core:^1.33.3

Packagist/mediawiki/core

Introduced in: 1.34.0Fixed in: 1.34.1

Fixcomposer require mediawiki/core:^1.34.1

Details

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Affected packages

References