CVE-2023-30106
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 · uneditedSourcecodester Medicine Tracker System in PHP 1.0.0 is vulnerable to Cross Site Scripting (XSS) via page=about.
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 reflected Cross Site Scripting (XSS) vulnerability exists in the Medicine Tracker System PHP 1.0.0 application. The 'page' parameter on the about page does not properly sanitize user input before reflecting it in the HTML output, allowing an attacker to inject malicious JavaScript that executes in victim browsers.
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= 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
- 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 Medicine Tracker System is installedLocate the application in the web server document root. Look for directories containing 'medicine' or 'tracker' related PHP files, or check known default paths such as /var/www/html/, /htdocs/, or the web server's configured document root.Affected if The Medicine Tracker System PHP application is present on the server.
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Verify the application versionInspect the application for version information. Check the about page directly at /about.php, or look for version files, README files, or meta tags within the application source code that indicate version 1.0.Affected if The installed version is Medicine Tracker System 1.0.
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Locate the vulnerable about pageAccess the about page endpoint in the browser or via curl. The vulnerable URL pattern is typically /about.php or a similar path that accepts a 'page' parameter.Affected if The about page is accessible and accepts a 'page' parameter.
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Test the page parameter for reflected inputSend a crafted request to the about page with a test payload in the 'page' parameter, such as: /about.php?page=test. Examine the HTML response to see if the value of 'page' appears literally in the response without sanitization or encoding.Affected if The 'page' parameter value is reflected directly in the HTML response without being sanitized or encoded.
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Confirm the XSS vulnerability existsSend a request with an XSS payload like <script>alert(1)</script> in the 'page' parameter and verify it is not filtered or encoded in the response. Check if the raw script tags appear in the HTML output.Affected if The 'page' parameter reflects unsanitized user input including HTML or script tags back to the user in the response.
A user is affected if the Medicine Tracker System version 1.0 is installed and the about page reflects the 'page' parameter value directly into HTML without sanitization or encoding, allowing injected JavaScript to execute.
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 on the page parameter. Use context-appropriate escaping when reflecting any user-controlled data into HTML. Consider implementing a Content Security Policy (CSP) as defense-in-depth.
- Consultation2.0 h
- Implementation2.0 h
- Testing1.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-30106 — 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-2023-30106 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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