What is CVE-2020-7470?

CVE-2020-7470 is a medium-severity vulnerability in Sonoff Th10, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-01-21.

How severe is CVE-2020-7470?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Sonoff Th10

CVE-2020-7470

Sonoff TH 10 and 16 devices with firmware 6.6.0.21 allows XSS via the Friendly Name 1 field (after a successful login with the Web Admin Password).

Vulnerability class: XSS (Cross-Site Scripting)

Published 2020-01-21 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (44.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% 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

Sonoff Th10
Sonoff Th10 Firmware — versions 6.6.0.21
Sonoff Th16
Sonoff Th16 Firmware — versions 6.6.0.21

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

sku11army.blogspot.com/2020/01/sonoff-sonoff-th-module-vuln-xss.html (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-7470?: CVE-2020-7470 is a medium-severity vulnerability in Sonoff Th10, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2020-01-21.
How severe is CVE-2020-7470?: Medium severity. CVSS v3 base score is 4.8 out of 10.