CVE-2026-15734Public exploitNetwork attack vectorHinoki check available

Root code execution via unsandboxed email templates

Published Aug 6, 2026 · Updated Aug 6, 2026

Server-side template injection in WGDashboard 4.3.2 and earlier allows remote authenticated users to execute arbitrary code as root. The email preview and send endpoints pass attacker-controlled Body and Subject fields to unsandboxed jinja2.Template().render(), which evaluates template expressions. An administrator session and a WireGuard peer rendering context are required; successful exploitation returns command output and runs commands with the dashboard's root privileges.

CVSS severity9.8
Critical
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Server-side template injection in WGDashboard 4.3.2 and earlier allows remote authenticated users to execute arbitrary code as root. The email preview and send endpoints pass attacker-controlled Body and Subject fields to unsandboxed jinja2.Template().render(), which evaluates template expressions. An administrator session and a WireGuard peer rendering context are required; successful exploitation returns command output and runs commands with the dashboard's root privileges.

The record

CVE
CVE-2026-15734
Published
Aug 6, 2026
Updated
Aug 6, 2026
Vendor
WGDashboard
Product
WGDashboard
Classifications
CWE-1336, T1190, T1059.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 6, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 6, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=4.3.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WGDashboard · WGDashboardversion=0 <=4.3.2

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1190Exploit Public-Facing Application
T1059.004Unix Shell

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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