CVE-2020-11030

In affected versions of WordPress, a special payload can be crafted that
can lead to scripts getting executed within the search block of the block
editor. This requires an authenticated user with the ability to add
content. This has been patched in version 5.4.1, along with all the
previously affected versions via a minor release (5.3.3, 5.2.6, 5.1.5,
5.0.9, 4.9.14, 4.8.13, 4.7.17, 4.6.18, 4.5.21, 4.4.22, 4.3.23, 4.2.27,
4.1.30, 4.0.30, 3.9.31, 3.8.33, 3.7.33).