api.php in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 has a Reflected File Download vulnerability.
api.php in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 has a Reflected File Download vulnerability.
https://lists.wikimedia.org/pipermail/mediawiki-announce/2017-November/000216.html https://phabricator.wikimedia.org/T128209 https://github.com/wikimedia/mediawiki/commit/9bf2c01ea238d0e71c56bad7341c89345855bd5d