CVE-2021-41728
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) vulnerability exists in Sourcecodester News247 CMS 1.0 via the search function in articles.
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 search function of Sourcecodester News247 CMS 1.0. An attacker can inject malicious JavaScript payloads into the search parameter, which is then reflected back in the page response without proper sanitization or output encoding, allowing execution of arbitrary scripts 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 Sourcecodester News247 CMS installation and versionIdentify the web application by checking the application's main page, footer, or admin panel for version information labeled as 'News247 CMS' version '1.0'. If the application was developed in-house or downloaded from Sourcecodester, verify the filename and deployment date match the 1.0 release.Affected if The installed application is Sourcecodester News247 CMS version 1.0 exactly.
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Locate the search function endpointNavigate through the application UI to find the search feature, typically found in the header, navigation bar, or a dedicated search page. Identify the HTTP method (GET or POST) and the parameter name used for search queries, commonly 'search', 'q', or 'keyword'.Affected if The application has a functional search feature that accepts user input.
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Test search parameter for reflected inputSubmit a benign test payload such as '<script>alert(1)</script>' or '<img src=x onerror=alert(1)>' in the search parameter via URL (if GET) or form submission. Examine the subsequent page response HTML source to determine if the payload appears exactly as entered without modification.Affected if The search parameter value is reflected in the response HTML without encoding or sanitization (the raw script tags or event handlers appear in the page source).
You are affected if you are running Sourcecodester News247 CMS version 1.0 and the search parameter reflects unencoded user input directly into the HTML response.
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/sanitization on the search function to neutralize malicious script payloads. Context-aware output encoding should be applied before reflecting user input in HTML responses.
- Consultation2.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-41728 — 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-2021-41728 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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