CVE-2020-28403
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 · uneditedA Cross-Site Request Forgery (CSRF) vulnerability exists in Star Practice Management Web version 2019.2.0.6, allowing an attacker to change the privileges of any user of the application. This can be used to grant himself administrative role or remove the administrative account of the application.
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 · moderate confidenceA Cross-Site Request Forgery (CSRF) vulnerability in Star Practice Management Web v2019.2.0.6 allows attackers to trick authenticated users' browsers into sending unauthorized privilege modification requests. The attacker can craft a malicious link or page that, when visited by an authenticated user, triggers requests to change user roles—either granting the attacker administrative access or removing existing admin 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= 2019.2.0.6CVSS 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
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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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Check installed Iris Star versionAccess the application's About or Help section, or query the web server headers, or check the software installation manifest to identify the exact version numberAffected if The installed version is exactly 2019.2.0.6 (the only affected version)
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Identify user privilege modification endpointsLocate the user management or roles administration pages within the web application where user roles can be modifiedAffected if The application has user privilege/role modification functionality accessible to authenticated users
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Inspect privilege modification forms for anti-CSRF tokensView the HTML source code of user role modification forms and check for hidden input fields containing anti-CSRF tokens (synchronizer tokens), or check if the form submission includes a token parameterAffected if No anti-CSRF token is present in the privilege modification forms or request parameters
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Verify Origin/Referer header validationSubmit a test privilege modification request with an altered or missing Origin/Referer header (e.g., from an external domain) and observe if the request is rejectedAffected if Requests with mismatched or missing Origin/Referer headers are accepted by the server
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Check session configuration for CSRF protectionsReview web server or application configuration files for CSRF protection settings, or examine how session cookies are configured (SameSite attribute)Affected if No CSRF protection mechanisms are configured at the server level
A user is affected if they are running version 2019.2.0.6 AND the user privilege modification endpoints lack anti-CSRF tokens and do not validate Origin/Referer headers.
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 anti-CSRF tokens (synchronizer token pattern) on all state-changing endpoints including user privilege modification functions, and validate Origin/Referer headers to ensure requests originate from legitimate sources.
- Consultation4.0 h
- Implementation16.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,960.
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Free · runs locallyCheck whether your project pulls in CVE-2020-28403 — 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-2020-28403 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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