CVSS 3.1 Score 6.1 of 10 (medium)


Published Jan 4, 2024
Updated: Jan 10, 2024


CVE-2024-21636 is a cross-site scripting vulnerability that affects the view_component framework in Ruby on Rails. Versions prior to 3.9.0 and 2.83.0 are impacted if a component directly rendered from a controller with the view_component gem defines a #call method or uses the #output_postamble method. These versions have been patched to fully mitigate the vulnerabilities. As a workaround, users can sanitize the return value of the #call method. The vulnerability poses a medium risk and requires user interaction, potentially allowing attackers to execute malicious scripts and compromise the confidentiality and integrity of an organization's data.

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