Zero-day vulnerability in TimThumb

Arbitrary file upload

Not patched

The exploit was announced by Mark Maunder.

Vulnerability details

Advisory: SB2011080101 - Arbitrary file upload Binarymoon TimThumb

Vulnerable component: TimThumb

CVE-ID: CVE-2011-4106

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type


The vulnerability allows a remote attacker to execute arbitrary PHP code on the target system.

The vulnerability exists due to improper storing of content in the cache directory when processing input. A remote attacker can send a specially crafted HTTP request containing a white-listed domain in the src parameter, upload a malicious PHP script and execute arbitrary PHP code.

Successful exploitation of the vulnerability may allow an attacker to execute arbitrary PHP code on the vulnerable system.

Note: the vulnerability was being actively exploited.

Public Exploits: