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LOW3.1

GHSA-m2ww-6wv6-vw3c

Cross site scripting in Concrete CMS

Quick fix

GHSA-m2ww-6wv6-vw3c — concrete5/core: upgrade to the fixed version with the command below.

composer require concrete5/core:^9.1.0

Details

XSS in /dashboard/blocks/stacks/view_details/ - old browsers only. When using an older browser with built-in XSS protection disabled, insufficient sanitation where built urls are outputted can be exploited for Concrete 8.5.7 and below as well as Concrete 9.0 through 9.0.2 to allow XSS. This cannot be exploited in modern-day web browsers due to an automatic input escape mechanism. Concrete CMS Security team ranked this vulnerability 3.1with CVSS v3.1 Vector AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N. Sanitation has been added where built urls are output.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/concrete5/core
Introduced in: 9.0.0Fixed in: 9.1.0
Fixcomposer require concrete5/core:^9.1.0
Packagist/concrete5/core
Introduced in: 0Fixed in: 8.5.8
Fixcomposer require concrete5/core:^8.5.8

References