What is CVE-2021-33231?

CVE-2021-33231 is a medium-severity vulnerability in Easyvista Service Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-10-20.

How severe is CVE-2021-33231?

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

XSS in Easyvista Service Manager

CVE-2021-33231

Cross Site Scripting (XSS) vulnerability in New equipment page in EasyVista Service Manager 2018.1.181.1 allows remote attackers to run arbitrary code via the notes field.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-10-20 · last modified 2026-07-09.

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: 0.006 (45.9th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: +0.000

Affected products

Easyvista Service Manager — versions 2018.1.181.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

af854a3a-2127-422b-91ae-364da2661108 (Product, Vendor Advisory)
armysick.github.io/cve-2021-33231/ (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-33231?: CVE-2021-33231 is a medium-severity vulnerability in Easyvista Service Manager, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-10-20.
How severe is CVE-2021-33231?: Medium severity. CVSS v3 base score is 5.4 out of 10.