IPython Notebook 0.12 through 1.x before 1.2 does not validate the origin of websocket requests, which allows remote attackers to execute arbitrary code by leveraging knowledge of the kernel id and a crafted page.
advisories.mageia.org/MGASA-2014-0320.html
lambdaops.com/cross-origin-websocket-hijacking-of-ipython
lists.opensuse.org/opensuse-updates/2014-08/msg00039.html
permalink.gmane.org/gmane.comp.python.ipython.devel/13198
seclists.org/oss-sec/2014/q3/152
www.mandriva.com/security/advisories?name=MDVSA-2015:160
bugzilla.redhat.com/show_bug.cgi?id=1119890
exchange.xforce.ibmcloud.com/vulnerabilities/94497
github.com/ipython/ipython/pull/4845