CVE-2020-4048

In affected versions of WordPress, due to an issue in
wp_validate_redirect() and URL sanitization, an arbitrary external link can
be crafted leading to unintended/open redirect when clicked. This has been
patched in version 5.4.2, along with all the previously affected versions
via a minor release (5.3.4, 5.2.7, 5.1.6, 5.0.10, 4.9.15, 4.8.14, 4.7.18,
4.6.19, 4.5.22, 4.4.23, 4.3.24, 4.2.28, 4.1.31, 4.0.31, 3.9.32, 3.8.34,
3.7.34).

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=962685&gt;