CVE-2019-12468
An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.27.0 through 1.32.1. Directly POSTing to Special:ChangeEmail would allow for bypassing re-authentication, allowing for potential account takeover.
Date published : 2019-07-10
https://seclists.org/bugtraq/2019/Jun/12
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html