QuickCMS is vulnerable to Cross-Site Request Forgery in article creation functionality. Malicious attacker can craft special website, which when visited by the admin, will automatically send a POST request creating a malicious article with content defined by the attacker. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.8 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

QuickCMS is vulnerable to Stored XSS in sTitle parameter in page editor functionality. Malicious attacker with admin privileges can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting edited page. Regular admin user is not able to inject any JS scripts into the page. The vendor was notified early about this vulnerability, but didn't respond with the details of vulnerability or vulnerable version range. Only version 6.8 was tested and confirmed as vulnerable, other versions were not tested and might also be vulnerable.

Absolute path traversal vulnerability in Quick.CMS, version 6.7, the exploitation of which could allow remote users to bypass the intended restrictions and download any file if it has the appropriate permissions outside of documentroot configured on the server via the aDirFiles%5B0%5D parameter in the admin.php page. This vulnerability allows an attacker to delete files stored on the server due to a lack of proper verification of user-supplied input.