What is CVE-2020-15573?

CVE-2020-15573 is a medium-severity vulnerability in Solarwinds Serv-U, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-07-07.

How severe is CVE-2020-15573?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Solarwinds Serv-U

CVE-2020-15573

SolarWinds Serv-U File Server before 15.2.1 has a "Cross-script vulnerability," aka Case Numbers 00041778 and 00306421.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.015 (73.3th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 73rd percentile — 73.3% 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 Serv-U

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

documentation.solarwinds.com/en/success_center/servu/Content/Release_Notes/Serv… (Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2020-15573?: CVE-2020-15573 is a medium-severity vulnerability in Solarwinds Serv-U, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-07-07.
How severe is CVE-2020-15573?: Medium severity. CVSS v3 base score is 6.1 out of 10.