CVE-2022-2740
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 vulnerability was found in SourceCodester Company Website CMS. It has been declared as critical. This vulnerability affects unknown code of the file /dashboard/add-blog.php of the component Add Blog. The manipulation of the argument ufile leads to unrestricted upload. The attack can be initiated remotely. VDB-205882 is the identifier assigned to this vulnerability.
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 critical unrestricted file upload vulnerability exists in SourceCodester Company Website CMS's Add Blog functionality. The file /dashboard/add-blog.php fails to properly validate the 'ufile' parameter, allowing remote authenticated attackers to upload arbitrary files including malicious executables to the server, potentially achieving remote code execution.
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 dataall versionsCVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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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Identify if SourceCodester Company Website CMS is installedLook for the presence of the application in your web root directory. Check for known files such as index.php in the web root and the /dashboard/ directory structure.Affected if The SourceCodester Company Website CMS is present on the server
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Verify the vulnerable file existsCheck if the file /dashboard/add-blog.php exists in the web application directory. This file handles the blog creation functionality.Affected if The file /dashboard/add-blog.php exists in the application
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Confirm the upload parameter is presentExamine the source code of /dashboard/add-blog.php and look for the 'ufile' form parameter that handles file uploads. This is the parameter that lacks proper validation.Affected if The 'ufile' parameter is found in the add-blog.php file and accepts file uploads without proper validation
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Check if the dashboard requires authenticationReview the authentication mechanism on the dashboard pages. Determine if unauthenticated users can access the add-blog.php functionality.Affected if The add-blog functionality is accessible to authenticated users (attacker needs valid credentials to exploit)
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Identify where uploaded files are storedCheck the application configuration to determine the upload directory path and whether uploaded files are accessible via web URLs.Affected if Uploaded files are stored within the webroot and are directly accessible via HTTP
You are affected if SourceCodester Company Website CMS is installed and the /dashboard/add-blog.php file exists with the unrestricted 'ufile' upload functionality accessible to authenticated users.
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 strict file type validation using an allowlist approach (verify both extension AND MIME type), sanitize uploaded filenames, store uploads outside the webroot or in a non-executable directory, and disable script execution in the upload directory.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
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Free · runs locallyCheck whether your project pulls in CVE-2022-2740 — 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-2022-2740 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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