Achievo 1.4.2 - Arbitrary File Upload









Affected Applications: Confirmed in Achievo 1.4.2. Other versions may also be affected.

Severity: Medium – CVSS: 6.8 (AV:L/AC:L/Au:S/C:C/I:C/A:C)

Vendor Status: New release available (Achievo 1.4.3)

Reference to Vulnerability Disclosure Policy:

Vulnerability Description:

The vulnerability is caused due to an improper check in “Document Types” section under Setup menu,
allowing the upload of files with arbitrary extensions to a folder inside the Webroot. This can be
exploited to e.g. execute arbitrary PHP code by uploading a specially crafted PHP script containing
some kind of Web Shell.
Proof of Concept:
Select a file with any extension (including PHP) and upload it using the form. The file will be available


For example, we can upload “cmd.php” in our instalation in localhost and execute it entering:



Direct execution of arbitrary PHP code in the Web Server.


Update the document manager and add a new config (docmanager_allowedfiletypes) for it in
/configs/ With this config you can tell the docmanager what type of files a user can

Vendor Response:
2009-12-03 – Vulnerability was identified
2009-12-03 – Vendor contacted
2009-12-03 – Vendor confirmed vulnerability
2009-12-03 – Vendor released fixed version
2009-12-04 – Vulnerability published

Contact Information:
For more information regarding the vulnerability feel free to contact the researcher at
ngrisolia <at> cybsec <dot> com

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