CVE-2019-16528
An issue was discovered in the AbuseFilter extension for MediaWiki. includes/special/SpecialAbuseLog.php allows attackers to obtain sensitive information, such as deleted/suppressed usernames and summaries, from AbuseLog revision data. This affects REL1_32 and REL1_33.
Date published : 2020-03-20
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/AbuseFilter/+/538051/
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/AbuseFilter/+/538053/