SSRF in Wgstart Wgcloud

CVE-2026-30404

The backend database management connection test feature in wgcloud v3.6.3 has a server-side request forgery (SSRF) vulnerability. This issue can be exploited to make the server send requests to probe the internal network, remotely download malicious files, and perform other dangerous operations.

Vulnerability class: SSRF (Server-Side Request Forgery)

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:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.004 (32.4th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-30404: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-30404?
CVE-2026-30404 is a high-severity vulnerability in Wgstart Wgcloud, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.5/10. Published 2026-03-19.
How severe is CVE-2026-30404?
High severity. CVSS v3 base score is 7.5 out of 10.