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VID 22933
Severity 30
Port 80, ...
Protocol TCP
Class CGI
Detailed Description WordPress versions 5.3.0 and earlier are affected by the following vulnerabilities:

- Two cross-site scripting (XSS) vulnerabilities exist due to improper validation of user-supplied input.
An unauthenticated, remote attacker can exploit these, by convincing a user to click a specially crafted URL, to execute arbitrary script code in a user's browser session.

- A remote, authenticated, unprivileged user can make a post sticky via the REST API.

- wp_kses_bad_protcol() has been hardened to ensure that it is aware of the named colon attribute.

* References:
https://wordpress.org/support/wordpress-version/version-5-3-1/

* Platforms Affected:
WordPress prior to 5.3.1
Any operating system Any version
Recommendation Upgrade to the version (5.3.1 or later) fixed this vulnerability, available from the WordPress Download Web page at http://wordpress.org/download/
Related URL CVE-2019-20042 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)