OpenCart CMS v4.0.2.2 was discovered to lack a protective mechanism on its login page against excessive login attempts, allowing unauthenticated attackers to gain access to the application via a brute force attack to the password parameter.

SQL injection vulnerability in OpenCart v.2.2.00 thru 3.0.3.2 allows a remote attacker to execute arbitrary code via the Fba plugin function in upload/admin/index.php.

OpenCart 3.0.3.7 allows users to obtain database information or read server files through SQL injection in the background.

In OpenCart 1.4.7 to 1.5.5.1, implemented anti-traversal code in filemanager.php is ineffective and can be bypassed.

OpenCart 3.0.3.6 is affected by cross-site scripting (XSS) in the Subject field of mail. This vulnerability can allow an attacker to inject the XSS payload in the Subject field of the mail and each time any user will open that mail of the website, the XSS triggers and the attacker can able to steal the cookie according to the crafted payload.

OpenCart 3.0.3.6 is affected by cross-site scripting (XSS) in the Profile Image. An admin can upload a profile image as a malicious code using JavaScript. Whenever anyone will see the profile picture, the code will execute and XSS will trigger.

Cross Site Request Forgery (CSRF) in CART option in OpenCart Ltd. Opencart CMS 3.0.3.6 allows attacker to add cart items via Add to cart.

OpenCart 3.0.3.3 allows remote authenticated users to conduct XSS attacks via a crafted filename in the users' image upload section because of a lack of entity encoding. NOTE: this issue exists because of an incomplete fix for CVE-2020-10596. The vendor states "this is not a massive issue as you are still required to be logged into the admin.

OpenCart 3.0.3.2 allows remote authenticated users to conduct XSS attacks via a crafted filename in the users' image upload section.

OpenCart 3.x, when the attacker has login access to the admin panel, allows stored XSS within the Source/HTML editing feature of the Categories, Product, and Information pages.