CVE-2020-9309
packagist/silverstripe/mimevalidator
Unrestricted Upload of File with Dangerous Type
Silverstripe CMS can be susceptible to script execution from malicious upload contents under allowed file extensions (for example HTML code in a TXT file). When these files are stored as protected or draft files, the MIME detection can cause browsers to execute the file contents.
All versions before 2.0.0
Upgrade to version 2.0.0 or above.
2020-07-28
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