Description
Multiple incomplete blacklist vulnerabilities in the avatar upload functionality in manageuser.php in Collabtive before 2.1 allow remote authenticated users to execute arbitrary code by uploading a file with a (1) .php3, (2) .php4, (3) .php5, or (4) .phtml extension.
Remediation
References
Related Vulnerabilities
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PHP Improper Link Resolution Before File Access ('Link Following') Vulnerability (CVE-2014-3981)