Provide references for CVE-2019-18987.
Where can I find more information about CVE-2019-18987?
References are available at: https://phabricator.wikimedia.org/T237887, https://gerrit.wikimedia.org/r/q/Ic12790bd33982473f77551bde9599ed083a3e1f1, https://www.mediawiki.org/wiki/Extension:AbuseFilter.