CVE-2020-25609
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 · uneditedThe NuPoint Messenger Portal of Mitel MiCollab before 9.2 could allow an authenticated attacker to execute arbitrary scripts due to insufficient input validation, aka XSS. A successful exploit could allow an attacker to view and modify user data.
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 confidenceThe NuPoint Messenger Portal in Mitel MiCollab versions prior to 9.2 contains a stored Cross-Site Scripting (XSS) vulnerability due to insufficient input validation. An authenticated attacker can inject malicious scripts into user input fields that execute in the browsers of other users viewing that content, potentially allowing unauthorized access to session data and modification of user information.
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< 9.2CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm Mitel MiCollab installationLocate the MiCollab installation directory or check for the MiCollab service running on the system. Common paths include C:\Program Files\Mitel\MiCollab or /opt/mitel/micollab. On Windows, check Services for 'Mitel MiCollab' service.Affected if Mitel MiCollab software is found on the system
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Identify installed MiCollab versionCheck the installed version of MiCollab. This can typically be found in the application itself under Help > About, in the Windows Programs and Features list, or by examining version files in the installation directory.Affected if The installed version is any release prior to 9.2 (e.g., 9.1, 9.0, 8.x, etc.)
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Verify NuPoint Messenger Portal is enabledAccess the MiCollab administration console and check whether the NuPoint Messenger Portal component is enabled and accessible. This is typically found under Services or Portal configuration settings in the admin interface.Affected if NuPoint Messenger Portal is enabled and accessible to users
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Confirm user authentication to portal is possibleDetermine whether the NuPoint Messenger Portal allows user authentication and input submission. This includes checking if user accounts can log in to the portal and submit content such as messages, profiles, or other user-defined fields.Affected if Authenticated users can access and submit data to the NuPoint Messenger Portal
The environment is affected if Mitel MiCollab is installed with a version prior to 9.2 AND the NuPoint Messenger Portal component is enabled and accessible to authenticated users.
Generated from the published advisory. Verify against your own configuration.
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 data9.2
Upgrade Mitel MiCollab to version 9.2 or later to obtain the patch for this vulnerability. If immediate patching is not possible, implement output encoding and input validation on all user-supplied data within the NuPoint Messenger Portal.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-25609 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2020-25609 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- 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
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