CVE-2024-4439

Summary

CVE-2024-4439 is a stored Cross-Site Scripting (XSS) vulnerability affecting WordPress Core versions up to 6.5.2. This issue lies in the Avatar block's insufficient output escaping of user display names. Authenticated attackers with contributor-level access and above can inject arbitrary web scripts into pages, causing these scripts to execute whenever a user accesses the injected page. Furthermore, unauthenticated attackers can exploit this vulnerability by injecting web scripts into pages with the comment block present and displaying the comment author's avatar.

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