What is CVE-2018-13351?

CVE-2018-13351 is a medium-severity vulnerability in Terra-Master Terramaster Operating System, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-11-27.

How severe is CVE-2018-13351?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Terra-Master Terramaster Operating System

CVE-2018-13351

Cross-site scripting in Control Panel in TerraMaster TOS version 3.1.03 allows attackers to execute JavaScript via the edit password form.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2018-11-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (56.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 57th percentile — 56.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Terra-Master Terramaster Operating System — versions 3.1.03

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

blog.securityevaluators.com/vulnerabilities-in-terramaster-tos-3-1-03-fb99cf88b… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2018-13351?: CVE-2018-13351 is a medium-severity vulnerability in Terra-Master Terramaster Operating System, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2018-11-27.
How severe is CVE-2018-13351?: Medium severity. CVSS v3 base score is 4.8 out of 10.