CVSS 3.1 Score 6.8 of 10 (medium)


Published Nov 29, 2023
Updated: Dec 5, 2023


CVE-2023-49090 is a vulnerability affecting CarrierWave, a file upload solution for Ruby web frameworks like Rails and Sinatra. The vulnerability allows for a Content-Type allowlist bypass, potentially leading to cross-site scripting (XSS) attacks. The issue arises from the partial matching validation in the `allowlisted_content_type?` function, which can be exploited by attackers crafting malicious `content_type` values. To remediate this vulnerability, users should update to patched versions 2.2.5 or 3.0.5 of CarrierWave. This vulnerability poses a medium risk with a base score of 6.8 and high confidentiality impact according to CVSS:3.1 standards, making it important for organizations using affected versions of CarrierWave to apply the necessary patches promptly to mitigate potential security risks.


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