CVE-2026-78557

Code execution via unescaped backend data rendering

Published Oct 13, 2026 · Updated Oct 13, 2026

Script injection in Siemens Industrial Edge App Publisher allows attackers to execute code via backend data rendered in its UI. The UI renders backend data without adequate sanitization or escaping, and its Node.js integration turns injected JavaScript into code execution on the victim's machine. Exploitation requires attacker-controlled backend data to reach the UI; the supplied record does not specify required privileges or user actions.

CVSS severityUnavailable
Unscored
EPSS probability0.45%
Next 30 days · Oct 18, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Script injection in Siemens Industrial Edge App Publisher allows attackers to execute code via backend data rendered in its UI. The UI renders backend data without adequate sanitization or escaping, and its Node.js integration turns injected JavaScript into code execution on the victim's machine. Exploitation requires attacker-controlled backend data to reach the UI; the supplied record does not specify required privileges or user actions.

The record

CVE
CVE-2026-78557
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
Siemens
Product
Industrial Edge App Publisher
Classifications
T1203
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 13, 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 <V1.27.9

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Siemens · Industrial Edge App Publisherversion=0 <V1.27.9

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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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