This article is a part of our Vulnerability Database (back to index)
Cross-Site Request Forgery occurrences in Mcms
An issue was discovered in MCMS 5.2.7. There is a CSRF vulnerability that can add an administrator account via ms/basic/manager/save.do. (2022-06-02, CVE-2022-29647)
MCMS v5.2.7 contains a Cross-Site Request Forgery (CSRF) via /role/saveOrUpdateRole.do. This vulnerability allows attackers to escalate privileges and modify data. (2022-04-22, CVE-2022-27340)
An issue was discovered in MCMS 4.6.5. There is a CSRF vulnerability that can add an administrator account via ms/basic/manager/save.do. (2018-09-23, CVE-2018-17366)
Why Cross-Site Request Forgery can be dangerous
The absence of Anti-CSRF tokens may lead to a Cross-Site Request Forgery attack that can result in executing a specific application action as another logged in user, e.g. steal their account by changing their email and password or silently adding a new admin user account when executed from the administrator account.
The attacker may copy one of your web application forms, e.g. email/password change form.
The webpage will contain a form with the exact set of fields as the original application but with input values already provided and the submit button replaced with a Javascript code causing auto-submission. When the page is accessed the form will be immediately submitted and page contents replaced with a valid content or a redirect to your original application.
One of your application users who is already logged in can be then tricked to navigate to such malicious page e.g. by clicking a link in a phishing email, and the pre-populated form content will be submitted to your application like it would be submitted by your user.