CVE-2026-25787

Affected devices do not properly validate and sanitize Technology Object (TO) name rendered on the "Motion Control Diagnostics" page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page. If a benign user with appropriate rights accesses the "Motion Control Diagnostics" parameters page, the malicious code would be executed in the scope of their web session.

CVSS v3 9.1 CRITICAL

9.1^/10

CVSS v3 : CRITICAL

V3 Legend

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/html/ssa-688146.html

Configurations

No configuration.

History

12 May 2026, 10:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-12 10:16

Updated : 2026-07-14 10:16

NVD link : CVE-2026-25787

Mitre link : CVE-2026-25787

CVE.ORG link : CVE-2026-25787

JSON object : View

Products Affected

No product.

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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"defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.9.9", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.9.9", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP", "versions": [{"status": "affected", "version": "0", "lessThan": "*", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.9.9", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.9.9", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.9.9", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL", "versions": [{"status": "affected", "version": "0", "lessThan": "V2.9.9", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.1.6", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.1.6", "versionType": "custom"}], "defaultStatus": "unknown"}, {"vendor": "Siemens", "product": "SIPLUS S7-1500 CPU 1518F-4 PN/DP", "versions": [{"status": "affected", "version": "0", "lessThan": "V3.1.6", "versionType": "custom"}], "defaultStatus": "unknown"}]}], "published": "2026-05-12T10:16:44.610", "references": [{"url": "https://cert-portal.siemens.com/productcert/html/ssa-688146.html", "source": "productcert@siemens.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "productcert@siemens.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Affected devices do not properly validate and sanitize Technology Object (TO) name rendered on the \"Motion Control Diagnostics\" page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\r\nIf a benign user with appropriate rights accesses the \"Motion Control Diagnostics\" parameters page, the malicious code would be executed in the scope of their web session."}], "lastModified": "2026-07-14T10:16:31.980", "sourceIdentifier": "productcert@siemens.com"}