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Medium · 6.1 CVE-2024-21636 EUVD-2024-0446GHSA-wf2x-8w6j-qw37

view_component Cross-site Scripting vulnerability

Published Jan 4, 2024 · Updated Jun 17, 2025 · Assigned by GitHub_M

Description

view_component is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. Versions prior to 3.9.0 and 2.83.0 have a cross-site scripting vulnerability that has the potential to impact anyone rendering a component directly from a controller with the view_component gem. Note that only components that define a `#call` method (i.e. instead of using a sidecar template) are affected. The return value of the `#call` method is not sanitized and can include user-defined content. In addition, the return value of the `#output_postamble` methodis not sanitized, which can also lead to cross-site scripting issues. Versions 3.9.0 and 2.83.0 have been released and fully mitigate both the `#call` and the `#output_postamble` vulnerabilities. As a workaround, sanitize the return value of `#call`.

Affected products

VendorProductAffectedFixed
ViewComponent view_component >= 3.0.0, < 3.9.0, < 2.83.0 —

Affected packages

EcosystemPackageAffectedFixedRecord
RubyGems view_component >= 3.0.0, < 3.9.0 3.9.0 GHSA-wf2x-8w6j-qw37
RubyGems view_component < 2.83.0 2.83.0 GHSA-wf2x-8w6j-qw37

References