Unauthorized Access in Craft CMS: User Registration Metrics Vulnerability
Summary
GHSA-rmj4-m9cp-mp9v: Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-rvmm-v933-jgxq. Affects craftcms/cms across 2 version ranges.
>= 4.0.0-RC1
>= 5.0.0-RC1
No fix is published. How to fix ↓
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Background
Craft CMS is a flexible content management system designed for developers and designers. It allows users to create and manage websites with ease, offering features such as custom fields, user management, and a powerful templating engine. However, a vulnerability has been identified that affects versions up to 4.18.0.1, allowing unauthorized access to user registration metrics for non-admin control panel users.
Vulnerability Detail
The vulnerability arises from a flaw in the actionGetNewUsersData function within the ChartsController.php file of Craft CMS. This issue is caused by a lack of proper authorization checks when manipulating the userGroupId argument. As a result, non-admin users can access sensitive user registration metrics, potentially leading to unauthorized data exposure. The vulnerability can be exploited remotely, making it critical for affected users to address it promptly.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
Currently, there are no specific workarounds available for this vulnerability. The best course of action is to upgrade to the patched version as soon as possible.
Conclusion
In summary, a significant vulnerability exists in Craft CMS versions up to 4.18.0.1, allowing unauthorized access to user registration metrics. Users are strongly advised to upgrade to version 4.18.1 or later to protect their applications from potential exploitation.
See every vulnerability recorded for craftcms/cms →
FAQ
Craft CMS versions up to 4.18.0.1 are affected. Users should upgrade to version 4.18.1 or later.
The CVSS score of this vulnerability is 4.3, indicating a moderate severity level.
Yes, the vulnerability can be exploited remotely, allowing unauthorized access to user registration metrics.
You can use Vulert, which monitors open-source vulnerabilities in real-time. Visit Vulert Scanner to check if your application is affected without requiring any signup.
While there are no specific workarounds, it is crucial to prioritize upgrading to the patched version to mitigate the risk of unauthorized access.
References
Related vulnerabilities
Recent vulnerabilities recorded for craftcms/cms.
