Multiple directory traversal vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow remote attackers to read arbitrary files via a …%2f (dot dot encoded slash) in the template_path parameter to (1) svc/virtualshelves/search or (2) svc/members/search.
bugs.koha-community.org/bugzilla3/show_bug.cgi?id=14408
koha-community.org/koha-3-14-16-released/
koha-community.org/security-release-koha-3-16-12/
koha-community.org/security-release-koha-3-18-8/
koha-community.org/security-release-koha-3-20-1/
packetstormsecurity.com/files/132458/Koha-ILS-3.20.x-CSRF-XSS-Traversal-SQL-Injection.html
seclists.org/fulldisclosure/2015/Jun/80
www.exploit-db.com/exploits/37388/
www.sba-research.org/2015/06/24/researchers-of-sba-research-found-several-critical-security-vulnerabilities-in-the-koha-library-software-via-combinatorial-testing/