SugarCRM <= 13.0.1 (set_note_attachment) Unrestricted File Upload Vulnerability

• Affected Versions:

Version 13.0.1 and prior versions.

Version 12.0.3 and prior versions.

• Vulnerability Description:

When handling the set_note_attachment SOAP call, the application allows uploading of any kind of file into /upload/ directory. This one is protected by the main SugarCRM .htaccess file, i.e. it doesn’t allow access/execution of PHP files. However, this behavior can be overridden if the subdirectory contains another .htaccess file. So, an attacker can leverage the vulnerability to firstly upload a new .htaccess file and then to upload the PHP code they want to execute.

• Proof of Concept:

• Solution:

Upgrade to version 13.0.2, 12.0.4, or later.

• Disclosure Timeline:

[23/04/2023] – Vendor notified

[21/09/2023] – Fixed versions released

[06/10/2023] – CVE identifier requested

[26/10/2023] – Publication of this advisory

[27/10/2023] – CVE identifier assigned

• CVE Reference:

The Common Vulnerabilities and Exposures project ( has assigned the name CVE-2023-46815 to this vulnerability.

• Credits:

Vulnerability discovered by Egidio Romano.

• Other References: