CVE-2020-21731
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 · uneditedGazie 7.29 is affected by: Cross Site Scripting (XSS) via http://192.168.100.7/gazie/modules/config/admin_utente.php?user_name=amministratore&Update. An attacker can inject JavaScript code, and the webapplication stores the injected code.
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 confidenceGazie 7.29 contains a stored Cross Site Scripting (XSS) vulnerability in the admin_utente.php file. The user_name parameter accepts malicious JavaScript code that gets stored by the application and executed when other users view the affected page.
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= 7.29CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm Gazie installationLocate Gazie web application files in the web root directory. Look for typical Gazie directories such as 'gazie' or check your web server document root for Gazie-specific files and folders.Affected if Gazie web application is present on the server
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Identify installed Gazie versionCheck the Gazie version by looking for a version file, checking the footer of the admin dashboard, or examining the 'config' or 'lib' directory for version information. Compare the found version against the affected version 7.29.Affected if Installed version is exactly 7.29
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Verify admin_utente.php existsLocate the admin_utente.php file within the Gazie installation directory structure, typically found in the admin or modules folder.Affected if admin_utente.php file exists in the Gazie installation
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Check for stored XSS in user_name fieldAccess the user management or user configuration area (admin_utente.php) and inspect the user_name field. Alternatively, query the database table storing user information to see if the user_name field contains suspicious content such as script tags, javascript:, or other XSS payload patterns.Affected if The user_name field contains unsanitized script execution code (e.g., <script> tags, event handlers, or encoded XSS payloads)
A user is affected if Gazie version 7.29 is installed AND the admin_utente.php user_name field contains or can be manipulated to contain malicious JavaScript code that executes when the page is viewed.
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 dataImplement proper input validation and output encoding for the user_name parameter and all user-supplied data in admin_utente.php. Use context-appropriate escaping when displaying stored data to prevent script execution.
- Consultation1.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,424.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-21731 — 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-2020-21731 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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