CVE-2015-2963 Information

Description

The thoughtbot paperclip gem before 4.2.2 for Ruby does not consider the content-type value during media-type validation which allows remote attackers to upload HTML documents and conduct cross-site scripting (XSS) attacks via a spoofed value as demonstrated by image/jpeg.

Reference

http://jvn.jp/en/jp/JVN83881261/index.html http://jvndb.jvn.jp/jvndb/JVNDB-2015-000088 http://openwall.com/lists/oss-security/2015/06/19/3 http://www.securityfocus.com/bid/75304 https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57 https://robots.thoughtbot.com/paperclip-security-release