MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows remote attackers to inject > (greater than) characters via the id attribute of a headline.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-8812.json"