What is CVE-2019-20518?

CVE-2019-20518 is a medium-severity vulnerability in Frappe Erpnext, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-03-19.

How severe is CVE-2019-20518?

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

XSS in Frappe Erpnext

CVE-2019-20518

ERPNext 11.1.47 allows reflected XSS via the PATH_INFO to the project/ URI.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-03-19 · 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: 0.008 (55.7th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 56th percentile — 55.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Frappe Erpnext — versions 11.1.47

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.netsparker.com/web-applications-advisories/ns-19-017-cross-site-scripting-i… (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2019-20518?: CVE-2019-20518 is a medium-severity vulnerability in Frappe Erpnext, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-03-19.
How severe is CVE-2019-20518?: Medium severity. CVSS v3 base score is 6.1 out of 10.