MediaWiki Exposure of Sensitive Information to an Unauthorized Actor Vulnerability - CVE-2015-8625
MediaWiki before 1.23.12 1.24.x before 1.24.5 1.25.x before 1.25.4 and 1.26.x before 1.26.1 do not properly sanitize parameters when calling the cURL library which allows remote attackers to read arbitrary files via an (at sign) character in unspecified POST array parameters.