pixabay-images.php in the Pixabay Images plugin before 2.4 for WordPress does not validate hostnames, which allows remote authenticated users to write to arbitrary files via an upload URL with a host other than pixabay.com.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1376
Reference (s):
- BUGTRAQ:20150119 MSA-2015-01: WordPress Plugin Pixabay Images Multiple Vulnerabilities
- URL: http://www.securityfocus.com/archive/1/534505/100/0/threaded
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=1067992%40pixabay-images%2Ftrunk%2Fpixabay-images.php&old=926633%40pixabay-images%2Ftrunk%2Fpixabay-images.php
- EXPLOIT-DB:35846
- URL: http://www.exploit-db.com/exploits/35846