Update php-ja-wordpress from 4.5.3 to 5.3.1.
This release contains these security fixes.
* Props to Daniel Bachhuber for finding an issue where an unprivileged
user could make a post sticky via the REST API.
* Props to Simon Scannell of RIPS Technologies for finding and
disclosing an issue where cross-site scripting (XSS) could be stored
in well-crafted links.
* Props to the WordPress.org Security Team for hardening
wp_kses_bad_protocol() to ensure that it is aware of the named colon
attribute.
* Props to Nguyen The Duc for discovering a stored XSS vulnerability
using block editor content.
For more detail about version 5.3.1, please refer
<https://wordpress.org/news/2019/12/wordpress-5-3-1-security-and-maintenance-release/>
And changes from 4.5.3 to 5.3.0, please refer HOMEPAGE and
<https://wordpress.org/>.
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