CVE-2024-28199

Summary

CVE-2024-28199 is a newly identified cross-site scripting (XSS) vulnerability affecting the open-source Ruby framework, phlex. The issue arises from a lack of proper case sensitivity in the code intended to prevent such attacks. Maliciously crafted user data can exploit this vulnerability when rendering an `<a>` tag with a user-provided link. Additionally, splatting user-provided attributes when rendering any HTML tag can lead to the inclusion of malicious event attributes, executing JavaScript when the events are triggered by another user. Users are strongly advised to upgrade to the available patches on RubyGems for all 1.x minor versions. For those unable to upgrade, implementing a content security policy disallowing `unsafe-inline` is recommended.

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