CVE-2015-2963

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.

• CWE-79

• http://jvn.jp/en/jp/JVN83881261/index.htmlVendor Advisory
• http://jvndb.jvn.jp/jvndb/JVNDB-2015-000088Vendor Advisory
• http://openwall.com/lists/oss-security/2015/06/19/3Vendor Advisory
• http://www.securityfocus.com/bid/75304
• https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57Exploit, Vendor Advisory
• https://robots.thoughtbot.com/paperclip-security-releaseVendor Advisory
• http://jvn.jp/en/jp/JVN83881261/index.htmlVendor Advisory
• http://jvndb.jvn.jp/jvndb/JVNDB-2015-000088Vendor Advisory
• http://openwall.com/lists/oss-security/2015/06/19/3Vendor Advisory
• http://www.securityfocus.com/bid/75304
• https://github.com/thoughtbot/paperclip/commit/9aee4112f36058cd28d5fe4a006d6981bd1eda57Exploit, Vendor Advisory
• https://robots.thoughtbot.com/paperclip-security-releaseVendor Advisory

Published

Jul 10, 2015

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2015-2957Cross-site scripting (XSS) vulnerability in Igreks MilkyStep…
• CVE-2015-2958Igreks MilkyStep Light 0.94 and earlier and Professional 1.8…
• CVE-2015-2959Zoho NetFlow Analyzer build 10250 and earlier does not check…
• CVE-2015-2960Cross-site scripting (XSS) vulnerability in Zoho NetFlow Ana…
• CVE-2015-2961Cross-site request forgery (CSRF) vulnerability in Zoho NetF…
• CVE-2015-2962CGI RESCUE BloBee 1.20 and earlier allows remote attackers t…
• CVE-2015-2964NAMSHI | JOSE 5.0.0 and earlier allows remote attackers to b…
• CVE-2015-2965Directory traversal vulnerability in osCommerce Japanese 2.2…
• CVE-2015-2966Directory traversal vulnerability in the Droidware UK Explor…
• CVE-2015-2967Cross-site scripting (XSS) vulnerability in settings.php in …
• CVE-2015-2968LINE@ for Android version 1.0.0 and LINE@ for iOS version 1.…5.9
• CVE-2015-2969Cross-site scripting (XSS) vulnerability in index.php in LEM…