CVE-2026-30402: An issue in wgcloud v.2.3.7 and before allows a remote attacker to execute arbitrary code via the test connect

Q: How do I fix CVE-2026-30402?

wgcloud: upgrade to newer than 2.3.7. Exact commands for each OS are on this page.

Q: Is CVE-2026-30402 being exploited?

CVE-2026-30402 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-30402 affect?

CVE-2026-30402 affects wgcloud. Severity is critical (CVSS 9.8). An issue in wgcloud v.2.3.7 and before allows a remote attacker to execute arbitrary code via the test connection function

Q: How urgent is CVE-2026-30402?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

This week

CRITICAL 9.8REMOTEUPGRADE

CVE-2026-30402 is a critical-severity flaw (CVSS 9.8) affecting wgcloud. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue in wgcloud v.2.3.7 and before allows a remote attacker to execute arbitrary code via the test connection function

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-94
Published	2026-03-19
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: wgstart

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-19 15:16 UTCPublished CVE record published
2026-06-17 10:32 UTCUpdated Record last modified

wgstart wgcloud UPGRADE

Affected: <= 2.3.7

Fixed in: newer than 2.3.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy wgcloud || rpm -q wgcloud || wgcloud --version

2. UPGRADE to newer than 2.3.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade wgcloud

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade wgcloud

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora ELN · fonttools · FIXED · 4.68.0-1.eln159 · FEDORA-2026-37fa4b964c · source

sudo dnf upgrade --advisory=FEDORA-2026-37fa4b964c

Fedora 46 · fonttools · FIXED · 4.68.0-1.fc46 · FEDORA-2026-65d6c01c75 · source

sudo dnf upgrade --advisory=FEDORA-2026-65d6c01c75

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-30402?

wgcloud: upgrade to newer than 2.3.7. Exact commands for each OS are on this page.

Is CVE-2026-30402 being exploited?

CVE-2026-30402 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-30402 affect?

CVE-2026-30402 affects wgcloud. Severity is critical (CVSS 9.8). An issue in wgcloud v.2.3.7 and before allows a remote attacker to execute arbitrary code via the test connection function

How urgent is CVE-2026-30402?

Priority 61/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

Related CVEs

CVE-2026-30404 HIGH 7.5 UPGRADE The backend database management connection test feature in wgcloud v3.6.3 has a server-side request forgery (S
CVE-2026-30403 HIGH 7.5 UPGRADE There is an arbitrary file read vulnerability in the test connection function of backend database management i

References

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