CVE intelligence and bounded remediation

CVE-2026-30404 — The backend database management connection test feature in wgcloud v3.6.3 has a server-side request forgery (SSRF) vulnerability

High CVSS 7.5

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.

Severity
High
CVSS
7.5 (3.1)
Published
2026-03-19
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-918

Affected products

  • wgstart / wgcloud

Matched remediation archetype

Server-side request forgery and unintended proxying

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Check exposure

  • Inventory server-side URL fetchers, webhooks, importers, previews, redirects, proxies, and protocol handlers reachable from untrusted input.
  • Map egress paths to internal services, metadata endpoints, loopback, private address space, and privileged control planes.
  • Review DNS resolution, redirect, proxy, credential-forwarding, and URL parsing behavior without requesting sensitive targets.

Remediate safely

  • Replace arbitrary destinations with named integrations or a strict allowlist of schemes, hosts, ports, and paths.
  • Resolve and validate every destination and redirect hop, then enforce egress policy independently of application checks.
  • Remove ambient credentials and sensitive headers from fetchers; apply response size, time, and content limits.

Authoritative sources

Complete CVE record and remediation plan

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