Improper Neutralization of Special Elements used in an OS Command in bookmarking function of Newsbeuter versions 0.7 through 2.9 allows remote attackers to perform user-assisted code execution by crafting an RSS item that includes shell code in its title and/or URL.
https://usn.ubuntu.com/4585-1/
https://groups.google.com/forum/#%21topic/newsbeuter/iFqSE7Vz-DE
https://github.com/akrennmair/newsbeuter/issues/591
https://github.com/akrennmair/newsbeuter/commit/96e9506ae9e252c548665152d1b8968297128307