Detail
Vulnerability Overview
Winter CMS before version 1.2.4 suffers from a Local File Inclusion vulnerability due to unvalidated input in ColorPicker FormWidget, allowing attackers with backend access to include local files, potentially leading to sensitive information disclosure.
Vulnerability Details
Attackers exploit this vulnerability by manipulating the ColorPicker FormWidget's input, leading to the inclusion of arbitrary files present on the server. This flaw specifically impacts the custom stylesheets compilation process via LESS, opening a path for LFI attacks.
Possible Effects
- Information Disclosure: Access to sensitive files like
/etc/passwd. - Unauthorized Access: Potential pathway to more severe exploitation vectors.
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References
Solution Advice
- Update Winter CMS: Upgrade to version 1.2.4 or later to apply the security patch.
- Review User Permissions: Limit backend access to trusted users.
- Monitor for Anomalies: Regularly scan and monitor for unusual backend activities.
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