Headline
GHSA-vcg6-8fxc-x5cq: silverstripe/framework allows upload of dangerous file types
Some potentially dangerous file types exist in File.allowed_extensions which could allow a malicious CMS user to upload files that then get executed in the security context of the website. We have removed the ability to upload .css, .js, .potm, .dotm, .xltm and .jar files in the default configuration. Since allowed_extensions are synced to webserver configuration (in assets/.htaccess) automatically, this will also deny access to any existing uploads with these extensions.
Review our security guidelines for the Common Web Platform and the File Security guide for SilverStripe 4 to find out how to add or remove extensions.
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- GitHub Advisory Database
- GitHub Reviewed
- GHSA-vcg6-8fxc-x5cq
silverstripe/framework allows upload of dangerous file types
High severity GitHub Reviewed Published May 27, 2024 to the GitHub Advisory Database • Updated May 27, 2024
Package
composer silverstripe/framework (Composer)
Affected versions
>= 3.6.5-rc1, < 3.6.6
>= 4.0.3-rc1, < 4.0.4
>= 4.1.0-rc1, < 4.1.1
Patched versions
3.6.6
4.0.4
4.1.1
Description
Published to the GitHub Advisory Database
May 27, 2024
Last updated
May 27, 2024