CVE-2020-23242

Vulnerability

A stored cross-site scripting (XSS) vulnerability exists in NavigateCMS version 2.9 within the "Tools" feature, specifically in the Create and Edit functions for Web users. The application fails to sanitize user-supplied input in the "Personal" name field, allowing an attacker to inject arbitrary HTML and JavaScript that is persisted and executed when other users load the affected page [1].

Exploitation

An attacker must first authenticate as a user with access to the Admin panel. From there, the attacker navigates to the "Tools" section, selects "Web users", and performs either a Create or Edit operation. In the "Personal" name field, the attacker injects a payload such as '><details/open/ontoggle=confirm(document.cookie)>. When another user (including the attacker themselves) loads the page containing the stored payload, the malicious script executes in the context of the victim's browser [1].

Impact

Successful exploitation allows the attacker to execute arbitrary JavaScript in the victim's browser, leading to potential theft of session cookies, exfiltration of sensitive data, or manipulation of the web page content under the guise of the vulnerable site. The attack can compromise the confidentiality and integrity of the victim's session and data [1].

Mitigation

As of the reference publication date, no official patch or fixed version has been released for NavigateCMS 2.9. The recommended mitigation is to sanitize all user input in the affected fields and ensure that HTML-entity encoding is applied before rendering. Users should monitor the project repository for updates related to this issue and consider restricting access to the Admin panel to trusted users only [1].