The downloadZip function in application/controllers/admin/export.php in LimeSurvey through 3.16.1+190225 allows a relative path.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9960
Reference (s):
- https://github.com/LimeSurvey/LimeSurvey/commit/1ed10d3c423187712b8f6a8cb2bc9d5cc3b2deb8