CVE-2019-11358: Cross-site Scripting

April 20, 2019 (updated June 12, 2019)

jQuery, as used in Drupal, Backdrop CMS, and other products, mishandles jQuery.extend(true, {}, ...) because of Object.prototype pollution. If an unsanitized source object contained an enumerable __proto__ property, it could extend the native Object.prototype.

References

www.securityfocus.com/bid/108023
blog.jquery.com/2019/04/10/jquery-3-4-0-released/
nvd.nist.gov/vuln/detail/CVE-2019-11358
seclists.org/bugtraq/2019/Apr/32

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