What is CVE-2018-5281?

CVE-2018-5281 is a medium-severity vulnerability in SonicWall Nsa 250m, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-01-08.

How severe is CVE-2018-5281?

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

XSS in SonicWall Nsa 250m

CVE-2018-5281

SonicWall SonicOS on Network Security Appliance (NSA) 2017 Q4 devices has XSS via the CFS Custom Category and Cloud AV DB Exclusion Settings screens.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-01-08 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.025 (84.7th percentile), scored 2026-10-20.

Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 84.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.025 · newest: 0.025 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

psirt.global.sonicwall.com/vuln-detail/SNWLID-2018-0002 (Vendor Advisory)
www.securityfocus.com/bid/102443 (VDB Entry, Third Party Advisory, vdb-entry)
www.vulnerability-lab.com/get_content.php (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-5281?: CVE-2018-5281 is a medium-severity vulnerability in SonicWall Nsa 250m, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2018-01-08.
How severe is CVE-2018-5281?: Medium severity. CVSS v3 base score is 5.4 out of 10.