The files function in the administration section in CS-Cart 4.6.2 and earlier allows attackers to execute arbitrary PHP code via vectors involving a custom page.
Twigmo bundled with CS-Cart 4.3.9 and earlier and Twigmo bundled with CS-Cart Multi-Vendor 4.3.9 and earlier allow remote authenticated users to execute arbitrary PHP code on the servers.
Multiple cross-site scripting (XSS) vulnerabilities in CS-Cart before 4.1.1 allow remote attackers to inject arbitrary web script or HTML via the (1) settings_file or (2) data_file parameter to (a) ampie.swf, (b) amline.swf, or (c) amcolumn.swf.
CS-Cart before 3.0.6, when PayPal Standard Payments is configured, allows remote attackers to set the payment recipient via a modified value of the merchant's e-mail address, as demonstrated by setting the recipient to one's self.