CVE-2026-0566
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 security vulnerability has been detected in code-projects Content Management System 1.0. Impacted is an unknown function of the file /admin/edit_posts.php. The manipulation of the argument image leads to unrestricted upload. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used.
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 the code-projects CMS 1.0 at /admin/edit_posts.php. The 'image' parameter accepts arbitrary file types without proper validation, potentially allowing remote attackers to upload malicious scripts and achieve 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 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
- 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.
-
Confirm Code Projects CMS installationLocate the CMS installation directory on your web server. Common paths include /var/www/html/, /www/, or C:\inetpub\wwwroot\. Look for index.php or admin/ directory containing edit_posts.phpAffected if The CMS is installed and accessible on your server
-
Identify the CMS versionCheck for a version file or inspect the source code for a version indicator. Look in the root directory for version.php, or grep for 'version' or '1.0' in PHP files within the CMS directoryAffected if The installed version is 1.0 exactly
-
Locate the vulnerable scriptNavigate to the admin/ subdirectory of your CMS installation and verify the presence of edit_posts.php. Confirm the file contains an 'image' parameter handling in the PHP codeAffected if The file /admin/edit_posts.php exists and processes an 'image' parameter
-
Check for file upload validationInspect the edit_posts.php file for server-side file type validation. Look for MIME type checking, extension allowlisting, or file content validation before processing the uploaded file. Search for functions like mime_content_type, getimagesize, or preg_match for file extensionsAffected if No server-side validation exists for the 'image' parameter, or validation only checks client-side/extension without verifying actual file type
-
Determine if uploads are accessible via webCheck the upload directory configuration. If uploads are stored within the webroot (publicly accessible directory) and can retain executable extensions (.php, .phtml, .php5), they may be remotely accessibleAffected if Uploaded files are stored within the web-accessible directory with potentially executable extensions
You are affected if Code Projects CMS version 1.0 is installed with the /admin/edit_posts.php script present and lacking proper server-side validation on the 'image' parameter for file uploads.
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 server-side file type validation (allowlist approach), verify file MIME type and extension, store uploads outside webroot, rename uploaded files, and enforce proper authentication/authorization for the upload functionality.
- Consultation3.0 h
- Implementation6.0 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 $3,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-0566 — 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-2026-0566 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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
- No spam, self-promotion, credentials, or personal data