JustBoil.me Images Plugin Exposed Image Upload Scanner

The JustBoil.me Images Plugin is widely used in conjunction with TinyMCE, a popular WYSIWYG HTML editor. It's employed by web developers to facilitate image upload functionality directly from the editor interface, improving user experience by making it easier to integrate multimedia content. The plugin is utilized across various web applications and is particularly favored in blogging platforms, CMS systems, and other content publishing environments. JustBoil.me simplifies image management by allowing users to upload images effortlessly, making it a valuable tool for content creators globally. However, it requires proper configuration to ensure that it operates securely and does not lead to unintended vulnerabilities.

The vulnerability associated with the JustBoil.me Images Plugin involves a lack of proper access controls on the dialog interface. Specifically, the dialog-v4.htm file is exposed, opening up potential avenues for unauthorized access. This vulnerability is particularly concerning as it allows individuals with no authentication to exploit the upload functionality, potentially leading to further security breaches. By exploiting this weakness, attackers can introduce unwanted files or disrupt normal operations through unauthorized uploads.

Technical details of the vulnerability highlight that the endpoint /plugins/generic/tinymce/plugins/justboil.me/dialog-v4.htm is publicly accessible. Without adequate access restrictions, attackers can interact with this endpoint to upload files without authentication. The matchers within this scanner focus on identifying specific keywords and HTTP statuses that confirm the presence of this file. The exposure arises from not implementing sufficient security measures or misconfiguring the plugin setup, leading to this vulnerability.

If an attacker successfully exploits this vulnerability, the consequences could be severe. Potential effects include unauthorized file upload, which could result in the installation of malicious payloads, compromising the integrity of the web application. Moreover, such actions may lead to data exposure, service disruptions, and a broader breach of the system if left unchecked. Exploitation could be the precursor to more sophisticated attacks involving escalation of privileges or data manipulation.

REFERENCES

• https://cxsecurity.com/issue/WLB-2019050108