What is CVE-2018-17849?

CVE-2018-17849 is a medium-severity vulnerability in Naviwebs Navigate Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-10-04.

How severe is CVE-2018-17849?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Naviwebs Navigate Cms

CVE-2018-17849

Navigate CMS 2.8 has Stored XSS via a navigate_upload.php (aka File Upload) request with a multipart/form-data JavaScript payload.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.005 (44.5th percentile), scored 2026-10-19.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000

Affected products

Naviwebs Navigate Cms — versions 2.8

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

cxsecurity.com/issue/WLB-2018100018 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-17849?: CVE-2018-17849 is a medium-severity vulnerability in Naviwebs Navigate Cms, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-10-04.
How severe is CVE-2018-17849?: Medium severity. CVSS v3 base score is 5.4 out of 10.