CVE-2026-15734: A Server-Side Template Injection (SSTI) vulnerability in WGDashboard version 4.3.2 and earlier, allows authent

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CRITICAL 9.8REMOTE

CVE-2026-15734 is a critical-severity flaw (CVSS 9.8) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A Server-Side Template Injection (SSTI) vulnerability in WGDashboard version 4.3.2 and earlier, allows authenticated attackers to execute arbitrary code as root.

Why this priority

Critical severity
CISA SSVC: public proof of concept
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-1336
Published	2026-08-06
Last modified	2026-10-23

Publisher (CNA): CERT/CC

Last updated 2026-10-23 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-08-06 22:16 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · pspp · FIXED · 2.1.3-2.fc46 · FEDORA-2026-0d6444911b · source

sudo dnf upgrade --advisory=FEDORA-2026-0d6444911b

Fedora ELN · barman · FIXED · 3.20.1-3.eln159 · FEDORA-2026-45ecf042c2 · source

sudo dnf upgrade --advisory=FEDORA-2026-45ecf042c2

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/Stuub/WGDashboard-v4.3.2-SSTI-to-Root-RCE-PoC

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-2026-15734?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-15734 being exploited?

CVE-2026-15734 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-2026-15734 affect?

CVE-2026-15734 affects affected software. Severity is critical (CVSS 9.8). A Server-Side Template Injection (SSTI) vulnerability in WGDashboard version 4.3.2 and earlier, allows authenticated attackers to execute arbitrary code as root.

How urgent is CVE-2026-15734?

Priority 59/100. Critical severity; CISA SSVC: public proof of concept; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

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