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GHSA-jjmg-xmq2-g6ffmedium4.8

Magento 2 Community Edition XSS Vulnerability

Impact

A stored cross-site scripting (XSS) vulnerability exists in in Magento 1 prior to 1.9.4.3 and 1.14.4.3, Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. An authenticated user with access to the wysiwyg editor can abuse the blockDirective() function and inject malicious javascript in the cache of the admin dashboard.

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.

magento/community-edition Packagist
Affected rangeRecorded fix
From 2.2.0 before 2.2.10Ecosystem versions2.2.10
From 2.3 before 2.3.2-p2Ecosystem versions2.3.2-p2

Version evidence: OSV · GHSA-jjmg-xmq2-g6ff

View original version evidence (13 explicit versions)

Original source description

A stored cross-site scripting (XSS) vulnerability exists in in Magento 1 prior to 1.9.4.3 and 1.14.4.3, Magento 2.2 prior to 2.2.10, Magento 2.3 prior to 2.3.3 or 2.3.2-p1. An authenticated user with access to the wysiwyg editor can abuse the blockDirective() function and inject malicious javascript in the cache of the admin dashboard.

As per the Magento Release 2.3.3, if you have already implemented the pre-release version of this patch (2.3.2-p1), it is highly recommended to promptly upgrade to 2.3.2-p2.

References