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Gatemanager FirmwareOperating system · Secomea

CVE-2020-29028

MEDIUM · 6.1 CVSS v3.1 Published 2021-03-05
Fix available
A fix is available. Upgrade to 9.4.621054022 or later.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

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
Cross-site Scripting (XSS) vulnerability in web GUI of Secomea GateManager allows an attacker to inject arbitrary javascript code. This issue affects: Secomea GateManager all versions prior to 9.4.

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 · high confidence

Cross-site scripting (XSS) vulnerability in the Secomea GateManager web GUI allows attackers to inject arbitrary JavaScript code, likely through unsanitized user input fields in the interface. This is a stored XSS issue affecting all versions prior to 9.4.

MitigationUpgrade to GateManager version 9.4 or later, or implement proper input validation and output encoding on all user-supplied data rendered in the web interface.

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
Gatemanager FirmwareOperating system
Affected:< 9.4.621054022

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
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/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 GateManager firmware version
    Log into the GateManager admin web interface and navigate to System > Status or System > Information page where the firmware version is displayed. Alternatively, check the login page footer or about section.
    Affected if The displayed version number is lower than 9.4.621054022 (for example 9.3.x, 9.2.x, or any version starting with a number less than 9.4)
  2. Confirm web GUI is accessible
    Verify that the GateManager web interface is reachable on the network (typically ports 80, 443, or a custom admin port). Try accessing the login page via HTTP/HTTPS.
    Affected if The web GUI is exposed and accessible to network users or attackers
  3. Check for recent security updates
    Review any release notes, changelogs, or security bulletins from Secomea for the currently installed version to see if CVE-2020-29028 is referenced as addressed.
    Affected if The installed version shows no mention of XSS fixes or the version predates the 9.4 release

You are affected if your GateManager firmware version is below 9.4.621054022 and the web GUI interface is enabled and accessible.

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
Upgrade available Upgrade to 9.4.621054022 or later
Fixed in 9.4.621054022
Interim mitigation

Upgrade to GateManager version 9.4 or later, or implement proper input validation and output encoding on all user-supplied data rendered in the web interface.

Fix this in Gatemanager Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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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-2020-29028 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