Vulnerability · Published Apr 21, 2026 · Assigned by INCIBE

CVE-2026-3317Reflected Cross-Site Scripting in Navigate CMS application

Medium 5.1

In plain English

A medium-severity cross-site scripting in Navigate CMS from Navigate. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS 4.0)5.1Medium

Exploit odds (30 days)0.3%top 72.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
Navigate	Navigate CMS	0 – through 2.9.5

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References

https://www.incibe.es/en/incibe-cert/notices/aviso/reflected-cross-site-scripting-navigate-cms-application patch