A directory traversal vulnerability in includes/lib/gz.php in Chyrp 2.0 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) in the file parameter, a different vulnerability than CVE-2011-2744.
View the template here CVE-2011-2780.yaml
References:
https://nvd.nist.gov/vuln/detail/CVE-2011-2780