In Stellarium through 1.2, attackers can write to files that are typically unintended, such as ones with absolute pathnames or .. directory traversal.
https://github.com/Stellarium/stellarium/commit/eba61df3b38605befcb43687a4c0a159dbc0c5cb
https://github.com/Stellarium/stellarium/commit/787a894897b7872ae96e6f5804a182210edd5c78
https://github.com/Stellarium/stellarium/commit/1261f74dc4aa6bbd01ab514343424097f8cf46b7