CVE-2026-3317

Vulnerability

Overview

CVE-2026-3317 is a reflected cross-site scripting (XSS) vulnerability in the Navigate Content Management System (CMS). The flaw exists in the /blog endpoint, where user-supplied input passed through query parameters is not properly sanitized before being rendered in the HTML response. This allows an attacker to inject arbitrary JavaScript code that executes in the context of the victim's browser session [1].

Exploitation

Prerequisites

Exploitation requires user interaction: the victim must click on a crafted link containing the malicious payload. No authentication is needed, and the attack can be launched remotely over the network. The CVSS v4.0 base score is 5.1 (Medium), with the vector AV:N/AC:L/AT:N/PR:N/UI:A/SC:L/SI:L/SA:N, indicating low attack complexity and no privileges required, but user interaction is mandatory [1].

Impact

A successful attack allows the attacker to execute arbitrary JavaScript in the victim's browser. This can lead to session hijacking, defacement of the rendered page, or theft of sensitive information displayed in the browser context. The impact on confidentiality and integrity is limited to the scope of the user's session (SC:L, SI:L) [1].

Mitigation

The Navigate CMS team has addressed the vulnerability in version 2.9.6. Users running versions prior to 2.9.5 are advised to upgrade immediately. No workarounds have been reported, and the vulnerability is not known to be exploited in the wild [1].