CVE-2026-3317 Reflected Cross-Site Scripting in Navigate CMS application
Remote attackers can execute arbitrary JavaScript in victims' browsers via unsanitized input in the Navigate CMS blog endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-3317?
CVE-2026-3317 is a medium-severity cross-site scripting vulnerability in Navigate CMS, published on 21 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Reflected Cross-Site Scripting (XSS) vulnerability in Navigate Content Management System. The vulnerability is present in the '/blog' endpoint because user input is not properly sanitized through designed query parameters. This results in unsafe HTML rendering, which could allow a remote attacker to execute JavaScript code in the victim's browser.
Weakness: CWE-79
Which versions are affected by CVE-2026-3317?
How do I fix CVE-2026-3317?
No fix has been published for CVE-2026-3317 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-3317 being exploited?
There is no known exploitation of CVE-2026-3317 in the wild and no public exploit code.
Sources
Also known as GHSA-xh63-cv27-942f.