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GHSA-MG8G-5FC8-4FQP
Vulnerability from github – Published: 2026-05-12 12:32 – Updated: 2026-05-12 12:32
VLAI?
Details
Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters 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 "communication" parameters page, the malicious code would be executed in the scope of their web session.
Severity ?
9.1 (Critical)
{
"affected": [],
"aliases": [
"CVE-2026-25786"
],
"database_specific": {
"cwe_ids": [
"CWE-79"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T10:16:44Z",
"severity": "CRITICAL"
},
"details": "Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\nThis could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page.\nIf a benign user with appropriate rights accesses the \"communication\" parameters page, the malicious code would be executed in the scope of their web session.",
"id": "GHSA-mg8g-5fc8-4fqp",
"modified": "2026-05-12T12:32:14Z",
"published": "2026-05-12T12:32:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25786"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-688146.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
CVE-2026-25786 (GCVE-0-2026-25786)
Vulnerability from cvelistv5 – Published: 2026-05-12 08:20 – Updated: 2026-05-12 12:42
VLAI?
EPSS
Summary
Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters 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 "communication" parameters page, the malicious code would be executed in the scope of their web session.
Severity ?
9.1 (Critical)
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
1 reference
Impacted products
175 products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-25786",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-12T12:42:32.039790Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T12:42:40.239Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
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"product": "SIMATIC Drive Controller CPU 1504D TF",
"vendor": "Siemens",
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{
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{
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"vendor": "Siemens",
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
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{
"defaultStatus": "unknown",
"product": "SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs",
"vendor": "Siemens",
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"vendor": "Siemens",
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{
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{
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{
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}
]
},
{
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"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
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}
]
},
{
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"vendor": "Siemens",
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]
},
{
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{
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{
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]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
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{
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{
"defaultStatus": "unknown",
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"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
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]
},
{
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"product": "SIMATIC S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIMATIC S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
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"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
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},
{
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"vendor": "Siemens",
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"status": "affected",
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]
},
{
"defaultStatus": "unknown",
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"vendor": "Siemens",
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},
{
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{
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"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1513F-1 PN",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1515F-2 PN",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1515F-2 PN",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1515F-2 PN RAIL",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "*",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V2.9.9",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518-4 PN/DP MFP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
},
{
"defaultStatus": "unknown",
"product": "SIPLUS S7-1500 CPU 1518F-4 PN/DP",
"vendor": "Siemens",
"versions": [
{
"lessThan": "V3.1.6",
"status": "affected",
"version": "0",
"versionType": "custom"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Affected devices do not properly validate and sanitize PLC/station name rendered on the \"communication\" parameters page of the web interface.\r\nThis 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 \"communication\" parameters page, the malicious code would be executed in the scope of their web session."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"cvssV4_0": {
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H",
"version": "4.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T08:20:58.605Z",
"orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"shortName": "siemens"
},
"references": [
{
"url": "https://cert-portal.siemens.com/productcert/html/ssa-688146.html"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
"assignerShortName": "siemens",
"cveId": "CVE-2026-25786",
"datePublished": "2026-05-12T08:20:58.605Z",
"dateReserved": "2026-02-05T19:53:27.491Z",
"dateUpdated": "2026-05-12T12:42:40.239Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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