What is CVE-2025-27939?

CVE-2025-27939 is a high-severity vulnerability in Growatt Cloud Portal, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2025-04-15.

How severe is CVE-2025-27939?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in Growatt Cloud Portal

CVE-2025-27939

An attacker can change registered email addresses of other users and take over arbitrary accounts.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.003 (53.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Growatt Cloud Portal — versions 0

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

www.cisa.gov/news-events/ics-advisories/icsa-25-105-04

Frequently asked questions

What is CVE-2025-27939?: CVE-2025-27939 is a high-severity vulnerability in Growatt Cloud Portal, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 7.5/10. Published 2025-04-15.
How severe is CVE-2025-27939?: High severity. CVSS v3 base score is 7.5 out of 10.