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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.009 (57.8th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% 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: 0.009 · change: +0.000
Affected products
- Growatt Cloud Portal — versions 0
- Growatt Cloud Portal
Weakness classification (CWE)
References
- www.cisa.gov/news-events/ics-advisories/icsa-25-105-04 (US Government Resource, Third Party Advisory, Mitigation)
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.