CVE-2026-63356

JavaScript execution via unsanitized trace-name error messages

Published Oct 13, 2026 · Updated Oct 13, 2026

XSS on the Trace page in Siemens SIMATIC S7-1500 allows attackers to execute JavaScript via an imported CSV trace file. Calculated signal names from the file are included in displayed error messages without proper sanitization. Exploitation requires an authorized user with Read diagnostics rights to import the crafted file, and execution occurs in that user's browser session rather than as native controller code.

CVSS severityUnavailable
Unscored
EPSS probability0.25%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XSS on the Trace page in Siemens SIMATIC S7-1500 allows attackers to execute JavaScript via an imported CSV trace file. Calculated signal names from the file are included in displayed error messages without proper sanitization. Exploitation requires an authorized user with Read diagnostics rights to import the crafted file, and execution occurs in that user's browser session rather than as native controller code.

The record

CVE
CVE-2026-63356
Published
Oct 13, 2026
Updated
Oct 13, 2026
Vendor
Siemens
Product
SIMATIC S7-1500 CPU 1518T-4 PN/DP
Classifications
T1204.002
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=0 <*

What conditions does exploitation require?

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

What is affected?

Siemens · SIMATIC S7-1500 CPU 1518T-4 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1515T-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1507S F V2version=0 <*
Siemens · SIMATIC S7-1500 Software Controller Linux V3version=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S T V3version=0 <*
Siemens · SIPLUS ET 200SP CPU 1510SP-1 PN RAILversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1507S V3version=0 <*
Siemens · SIMATIC ET 200SP CPU 1514SP F-2 PNversion=0 <*
Siemens · SIPLUS ET 200SP CPU 1510SP F-1 PN RAILversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S V4version=0 <*
Siemens · SIMATIC S7-1500 CPU 1517F-3 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODKversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S TF V3version=0 <*
Siemens · SIMATIC S7-1500 CPU 1517TF-3 PN/DPversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1516F-3 PN/DP RAILversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516TF-3 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DP MFPversion=0 <*
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC3version=0 <*
Siemens · SIMATIC S7-1500 CPU 1516-3 PN/DPversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP RAILversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518TF-4 PN/DPversion=0 <*
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 Windows OSversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1517TF-3 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1517T-3 PNversion=0 <*
Siemens · SIPLUS ET 200SP CPU 1510SP F-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1517F-3 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1511F-1 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1518F-4 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1511TF-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S F V2version=0 <*
Siemens · SIMATIC ET 200SP CPU 1514SPT-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518TF-3 PNversion=0 <*
Siemens · SIPLUS ET 200SP CPU 1512SP F-1 PN RAILversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1513-1 PNversion=0 <*
Siemens · SIMATIC Drive Controller CPU 1507D TFversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516F-3 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODKversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1511T-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1507Sversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518-3 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller Linux V2version=0 <*
Siemens · SIPLUS S7-1500 CPU 1511-1 PN T1 RAILversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1507S Fversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1511-1 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1511F-1 PNversion=0 <*
Siemens · SIPLUS ET 200SP CPU 1512SP-1 PNversion=0 <*
Siemens · SIMATIC S7-PLCSIM Advancedversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S Fversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1511-1 PN TX RAILversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S F V3version=0 <*
Siemens · SIPLUS S7-1500 CPU 1515F-2 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1518-4 PN/DPversion=0 <*
Siemens · SIMATIC ET 200SP CPU 1510SP F-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1513F-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516T-3 PN/DPversion=0 <*
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V3 Industrial OSversion=0 <*
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PCversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516pro F-2 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1513-1 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1516F-3 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1517-3 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1513F-1 PNversion=0 <*
Siemens · SIMATIC ET 200SP CPU 1512SP F-1 PNversion=0 <*
Siemens · SIMATIC ET 200SP Open Controller CPU 1515SP PC2 V2 Windows OSversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518F-4 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S V2version=0 <*
Siemens · SIMATIC S7-1500 CPU 1512C-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516pro-2 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1511-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1513pro F-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1515F-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DPversion=0 <*
Siemens · SIMATIC ET 200SP CPU 1512SP-1 PNversion=0 <*
Siemens · SIPLUS ET 200SP CPU 1512SP-1 PN RAILversion=0 <*
Siemens · SIMATIC Drive Controller CPU 1504D TFversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAILversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1513pro-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1508S V3version=0 <*
Siemens · SIPLUS ET 200SP CPU 1510SP-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1517T-3 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1511C-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1507S V2version=0 <*
Siemens · SIMATIC ET 200SP CPU 1514SPT F-2 PNversion=0 <*
Siemens · SIMATIC ET 200SP CPU 1514SP-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1515-2 PNversion=0 <*
Siemens · SIPLUS S7-1500 CPU 1515F-2 PN RAILversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518-4 PN/DP MFPversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516T-3 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518T-3 PNversion=0 <*
Siemens · SIMATIC S7-1500 Software Controller CPU 1507S F V3version=0 <*
Siemens · SIPLUS S7-1500 CPU 1515F-2 PN T2 RAILversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1515TF-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1516TF-3 PN/DPversion=0 <*
Siemens · SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1517-3 PN/DPversion=0 <*
Siemens · SIMATIC ET 200SP CPU 1510SP-1 PNversion=0 <*
Siemens · SIPLUS ET 200SP CPU 1512SP F-1 PNversion=0 <*
Siemens · SIMATIC S7-1500 CPU 1518F-3 PNversion=0 <*

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

T1204.002User Execution: Malicious File

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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