CVE-2021-28047
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 · uneditedCross-Site Scripting (XSS) in Administrative Reports in Devolutions Remote Desktop Manager before 2021.1 allows remote authenticated users to inject arbitrary web script or HTML via multiple input fields.
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 confidenceCross-Site Scripting (XSS) vulnerability in the Administrative Reports feature of Devolutions Remote Desktop Manager allows authenticated users to inject arbitrary JavaScript or HTML through multiple input fields. The vulnerability exists due to insufficient input sanitization before rendering 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< 2021.1.0CVSS 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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Identify installed Remote Desktop Manager versionOpen the application, go to Help > About, or check the installed software version through system utilities (Windows Add/Remove Programs, or the executable's properties).Affected if The version listed is earlier than 2021.1.0 (e.g., 2020.x, 2021.0.x, etc.)
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Confirm Administrative Reports module accessLog into the application and navigate to the Administrative Reports feature (typically found in the Administration or Tools menu).Affected if You can access the Administrative Reports module as an authenticated user
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Identify input fields in Administrative ReportsWithin the Administrative Reports interface, locate input fields used for report generation, such as report name, description, filters, or custom parameters.Affected if Input fields exist and accept user-provided text for report configuration
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Check for output encodingInspect how user input is rendered by creating a test report with a harmless test string containing special characters (e.g., <test>) and viewing the generated report output.Affected if The special characters are rendered as-is in the output without encoding or stripping, indicating potential XSS vulnerability
You are affected if Remote Desktop Manager version is below 2021.1.0 AND you have access to the Administrative Reports feature where user input is rendered without proper sanitization.
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 data2021.1.0
Update Remote Desktop Manager to version 2021.1 or later. Additionally, implement proper input validation and output encoding on all input fields within the Administrative Reports module to prevent XSS attacks.
- Consultation4.0 h
- Implementation8.0 h
- Testing4.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-28047 — 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-2021-28047 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
- No spam, self-promotion, credentials, or personal data