CVE-2024-29661
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 File Upload vulnerability in DedeCMS v5.7 allows a local attacker to execute arbitrary code via a crafted payload.
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 confidenceDedeCMS v5.7 contains a file upload vulnerability that allows a local attacker to upload malicious files and achieve arbitrary code execution. The vulnerability stems from insufficient validation of uploaded files, likely missing proper file type checking, content validation, or sanitization of file names.
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= 5.7CVSS 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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Confirm DedeCMS installation and versionLocate DedeCMS installation directory and check version file or header. Typical locations include /include/dedetag.class.php or /data/admin/ver.txt. Compare the installed version to 5.7.Affected if The installed version is exactly 5.7 and the file upload functionality is present.
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Identify file upload functionalityLocate the file upload handler in DedeCMS, commonly in /include/uploadsafe.inc.php or /member/uploads.php. Search for upload-related scripts that process user-submitted files.Affected if File upload scripts exist and are accessible without proper admin authentication.
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Check file type validation configurationExamine the upload handling code for file type validation logic. Look for checks on file extensions, MIME types, or magic byte validation in the upload processing script.Affected if No server-side file type validation is performed, or validation relies solely on client-side checks or file extension whitelist.
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Verify uploaded file storage locationInspect the configuration or upload handler to determine where uploaded files are stored relative to the web root. Check if files are stored in a directory accessible via HTTP.Affected if Uploaded files are stored within the web root and can be accessed and executed via a browser.
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Test upload functionality with benign fileIf you have authorized access, attempt to upload a harmless file through the identified upload endpoint to confirm the functionality is active and reachable.Affected if The file upload endpoint accepts files without proper validation and stores them in an executable location.
A DedeCMS v5.7 installation with accessible file upload functionality that lacks proper server-side validation and stores uploaded files within the web root is affected by this vulnerability.
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 magic byte inspection, restrict allowed file extensions to safe types, sanitize file names, and store uploaded files outside the web root or with non-executable permissions.
- Consultation2.0 h
- Implementation8.0 h
- Testing4.0 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 $4,480.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-29661 — 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-2024-29661 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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