Vulnerable component: PHPCow
CVSSv3 score: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C
CWE-ID: CWE-98 - Improper Control of Filename for Include/Require Statement in PHP Program
The vulnerability allows a remote attacker to execute arbitrary PHP code on the target application.
The weakness exists due to improper validation of input passed via the "skin_file" HTTP parameter to "templateie_install.class.php" script. A remote attacker can send a specially-crafted HTTP request to vulnerable script, specify a malicious file from a remote system and execute arbitrary PHP code on the system.
Successful exploitation of the vulnerability results in arbitrary PHP code execution on the vulnerable application.
Note: the vulnerability was being actively exploited.
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