What is CVE-2021-37470?

CVE-2021-37470 is a medium-severity vulnerability in Nchsoftware Webdictate, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-25.

How severe is CVE-2021-37470?

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

XSS in Nchsoftware Webdictate

CVE-2021-37470

In NCH WebDictate v2.13, persistent Cross Site Scripting (XSS) exists in the Recipient Name field. An authenticated user can add or modify the affected field to inject arbitrary JavaScript.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-25 · 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: 0.006 (45.8th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.8% 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

Nchsoftware Webdictate

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

www.nch.com.au/webdictate/index.html (Product)
github.com/0xfml/poc/blob/main/NCH/WebDictate_2.13_XSS.md (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2021-37470?: CVE-2021-37470 is a medium-severity vulnerability in Nchsoftware Webdictate, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-07-25.
How severe is CVE-2021-37470?: Medium severity. CVSS v3 base score is 5.4 out of 10.