What is CVE-2019-16957?

CVE-2019-16957 is a medium-severity vulnerability in Solarwinds Webhelpdesk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-12-18.

How severe is CVE-2019-16957?

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

XSS in Solarwinds Webhelpdesk

CVE-2019-16957

SolarWinds Web Help Desk 12.7.0 allows XSS via the First Name field of a User Account.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-12-18 · 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: 0.015 (73.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: +0.000

Affected products

Solarwinds Webhelpdesk — versions 12.7.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

support.solarwinds.com/SuccessCenter/s/ (Vendor Advisory)
www.solarwinds.com/free-tools/free-help-desk-software (Product)
www.esecforte.com/cross-site-scripting-vulnerability-in-solarwinds-web-help-des… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-16957?: CVE-2019-16957 is a medium-severity vulnerability in Solarwinds Webhelpdesk, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2020-12-18.
How severe is CVE-2019-16957?: Medium severity. CVSS v3 base score is 5.4 out of 10.