What is CVE-2022-40004?

CVE-2022-40004 is a critical-severity vulnerability in Thingsboard, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2022-12-15.

How severe is CVE-2022-40004?

Critical severity. CVSS v3 base score is 9.6 out of 10.

XSS in Thingsboard

CVE-2022-40004

Cross Site Scripting (XSS) vulnerability in Things Board 3.4.1 allows remote attackers to escalate privilege via crafted URL to the Audit Log.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2022-12-15 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (58.3th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: +0.000

Affected products

Thingsboard — versions 3.4.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

gist.github.com/s3d113/bba63da007fcbe243615dd2a81690ffb (Third Party Advisory)

Frequently asked questions

What is CVE-2022-40004?: CVE-2022-40004 is a critical-severity vulnerability in Thingsboard, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2022-12-15.
How severe is CVE-2022-40004?: Critical severity. CVSS v3 base score is 9.6 out of 10.