CVE-2019-12474
Wikimedia MediaWiki 1.23.0 through 1.32.1 has an information leak. Privileged API responses that include whether a recent change has been patrolled may be cached publicly. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.
Date published : 2019-07-10
https://seclists.org/bugtraq/2019/Jun/12
https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html