CVE-2020-24594
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 · uneditedMitel MiCloud Management Portal before 6.1 SP5 could allow an unauthenticated attacker to execute arbitrary scripts due to insufficient input validation, aka XSS. A successful exploit could allow an attacker to gain access to a user session.
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 confidenceMitel MiCloud Management Portal before version 6.1 SP5 contains a stored cross-site scripting (XSS) vulnerability due to insufficient input validation. An unauthenticated attacker can inject malicious JavaScript through unsanitized input fields, which executes when other users view the affected content. Successful exploitation allows session hijacking and unauthorized access to user accounts.
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<= 6.0= 6.1CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
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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Identify the MiCloud Management Portal versionLog into the MiCloud Management Portal admin interface and navigate to the About, System Information, or Help section to view the installed software version. Alternatively, check the software release notes or installation documentation.Affected if The installed version is 6.0 or earlier, or is exactly version 6.1 without Service Pack 5 applied.
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Confirm the version is within affected rangeCompare the identified version number against the known affected versions: any release <= 6.0, or release 6.1 without SP5. Versions 6.1 SP5 and later are not affected.Affected if The version falls within <= 6.0 or equals 6.1 without the SP5 patch.
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Verify if unauthenticated input fields existExamine the MiCloud Management Portal for user-facing input forms, search fields, or data entry interfaces accessible without authentication where unsanitized user input could be stored and rendered to other users.Affected if The portal contains unauthenticated input fields and the version is within the affected range, indicating potential XSS exposure.
You are affected if the MiCloud Management Portal version is 6.0 or earlier, or exactly 6.1 without Service Pack 5, and the portal exposes unauthenticated input fields that could accept and store user-supplied content.
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.
dbcve · scopedUpgrade to MiCloud Management Portal 6.1 SP5 or later to remediate the input validation flaw. As a temporary measure, implement a WAF with XSS protection rules and enforce Content Security Policy headers to mitigate script injection risks.
6.1 SP5
- 1. Back up the current MiCloud Management Portal configuration and data.
- 2. Download Mitel MiCloud Management Portal version 6.1 SP5 from the official Mitel support portal.
- 3. Review the Mitel upgrade documentation for version 6.1 SP5.
- 4. Execute the upgrade procedure according to Mitel's official documentation.
- 5. After upgrade, verify the system is operational and test the XSS fix by confirming input validation is properly sanitizing user inputs.
- 6. Monitor logs for any post-upgrade issues.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-24594 — 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-2020-24594 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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