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MEDIUM4.8

GHSA-q7qr-22qw-pqgx

Cross site scripting in Concrete CMS

Quick fix

GHSA-q7qr-22qw-pqgx — concrete5/concrete5: upgrade to the fixed version with the command below.

composer require concrete5/concrete5:^9.3.4

Details

Concrete CMS versions 9.0.0 to 9.3.3 and below 8.5.19 are vulnerable to Stored XSS in Image Editor Background Color.  A rogue admin could add malicious code to the Thumbnails/Add-Type.

Are you affected?

Enter the version of the package you're using.

Affected packages

Packagist/concrete5/concrete5
Introduced in: 9.0.0Fixed in: 9.3.4
Fixcomposer require concrete5/concrete5:^9.3.4
Packagist/concrete5/concrete5
Introduced in: 0Fixed in: 8.5.19
Fixcomposer require concrete5/concrete5:^8.5.19

References