CVE-2024-2599
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 · uneditedFile upload restriction evasion vulnerability in AMSS++ version 4.31. This vulnerability could allow an authenticated user to potentially obtain RCE through webshell, compromising the entire infrastructure.
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 file upload restriction evasion vulnerability in AMSS++ version 4.31 allows authenticated users to bypass upload controls and deploy malicious webshells, potentially achieving remote code execution and compromising the entire infrastructure.
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= 4.31CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 AMSS++ versionLocate the version information for your AMSS++ installation (typically found in system info, about page, or version file)Affected if Version is 4.31 exactly (the only affected version listed)
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Confirm file upload feature is activeVerify whether the file upload module is enabled in your AMSS++ installation - check admin panel settings or configuration for upload-related featuresAffected if File upload functionality is enabled and accessible to users
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Check upload access controlsReview user authentication and authorization settings to determine if authenticated users (non-admin) can access file upload functionalityAffected if Authenticated users have upload permissions without additional restrictions
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Inspect upload directories for suspicious filesExamine the directories where uploaded files are stored - look for files with unusual extensions (php, asp, jsp, exe, shell) or unexpected file sizesAffected if Unknown or suspicious files exist in upload directories, especially web script extensions
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Review recent upload activity logsCheck AMSS++ logs for file upload events, focusing on file types, extensions, and user accounts involvedAffected if Uploads include file types that should be blocked or originate from unexpected user accounts
You are affected if running AMSS++ version 4.31 with the file upload feature enabled and 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 dataUpdate AMSS++ to a patched version. If unavailable, restrict file upload functionality to minimal trusted users, implement strict file type validation (Magic bytes/MIME type/extension), and add content-based malware/webshell scanning on upload.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $5,888.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-2599 — 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-2024-2599 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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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