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Ecostruxure Energy ExpertApplication · Schneider Electric

CVE-2020-7546

MEDIUM · 5.4 CVSS v3.1 Published 2020-12-01
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
58/100
Remediation priority · Elevated
Remotely reachable

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A CWE-79: Improper Neutralization of Input During Web Page Generation vulnerability exists in EcoStruxureª and SmartStruxureª Power Monitoring and SCADA Software (see security notification for version information) that could allow an attacker to perform actions on behalf of the authorized user when accessing an affected webpage.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

CWE-79 Cross-Site Scripting (XSS) vulnerability in EcoStruxure and SmartStruxure Power Monitoring and SCADA Software web interface. Improper neutralization of user-supplied input during web page generation allows attackers to inject malicious scripts that execute in the context of authorized user sessions, potentially enabling session hijacking and actions performed on behalf of the legitimate user.

MitigationImplement robust input validation and output encoding/sanitization for all user-supplied data rendered in web pages. Deploy Content Security Policy (CSP) headers to mitigate XSS execution. Review and patch affected web components per vendor guidance.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Ecostruxure Energy ExpertApplication
Affected:= 2.0
Ecostruxure Power Monitoring ExpertApplication
Affected:= 7.0= 8.0= 9.0
Power ManagerApplication
Affected:= 1.1= 1.2= 1.3
Powerscada Expert With Advanced Reporting And DashboardsApplication
Affected:= 8.0
Powerscada Operation With Advanced Reporting And DashboardsApplication
Affected:= 9.0

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify installed Schneider Electric product
    Review installed software or check Add/Remove Programs for Schneider Electric monitoring or SCADA products such as EcoStruxure Energy Expert, EcoStruxure Power Monitoring Expert, Power Manager, or PowerSCADA.
    Affected if The installed product matches any of the affected products: EcoStruxure Energy Expert, EcoStruxure Power Monitoring Expert, Power Manager, PowerSCADA Expert, or PowerSCADA Operation.
  2. Determine installed software version
    Open the software or check its About/Help section to locate the exact version number. Common locations include the main application window, system tray icon right-click menu, or installation directory properties.
    Affected if The installed version is exactly 2.0 for Energy Expert; 7.0, 8.0, or 9.0 for Power Monitoring Expert; 1.1, 1.2, or 1.3 for Power Manager; 8.0 for PowerSCADA Expert with Advanced Reporting; or 9.0 for PowerSCADA Operation with Advanced Reporting.
  3. Verify web interface is enabled
    Check if the product's web server or web dashboard service is running and accessible. Typically accessible via browser on ports like 80, 443, 8080, or a product-specific port. Check services.msc for related web services.
    Affected if The web interface or web dashboard component is active and reachable over the network.
  4. Review web access logs for suspicious parameters
    Examine the product's web server logs (commonly found in installation logs folder or IIS/Apache logs) for unusual query parameters, especially in GET or POST requests to web pages.
    Affected if Logs contain unexpected script tags, javascript: URIs, or XSS attack patterns in user-supplied fields.

A user is affected if they have any of the listed product versions installed with the web interface enabled and exposed.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement robust input validation and output encoding/sanitization for all user-supplied data rendered in web pages. Deploy Content Security Policy (CSP) headers to mitigate XSS execution. Review and patch affected web components per vendor guidance.

Fix this in Ecostruxure Energy Expert Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2020-7546 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data