Unrestricted File UploadWeakness · CWE-434

CVE-2024-12700

HIGH · 8.8 CVSS v3.1 Published 2024-12-19
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
94/100
Remediation priority · Urgent
Remotely reachable Zero-click

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 · unedited
There is an unrestricted file upload vulnerability where it is possible for an authenticated user (low privileged) to upload an jsp shell and execute code with the privileges of user running the web server.

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 · high confidence

Unrestricted file upload vulnerability allowing authenticated low-privileged users to upload malicious JSP shells and execute arbitrary code with web server user privileges.

MitigationImplement strict file type validation using magic byte analysis, restrict upload directories to prevent script execution, enforce proper authorization checks for upload functionality, and disable JSP execution in upload directories.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS 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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify product and version
    Check the web application framework or product installed (e.g., from application banner, configuration files, or software inventory). Compare the installed version against any known affected version ranges provided by the vendor.
    Affected if The product version falls within the affected range and the vendor has listed this CVE as applicable.
  2. Verify file upload functionality exists
    Locate any file upload endpoints in the application (e.g., /upload, /fileupload, profile picture upload, document upload). Check if the application accepts file uploads through web forms, APIs, or administrative interfaces.
    Affected if The application has active file upload functionality that accepts files from authenticated users.
  3. Confirm JSP file execution is enabled
    Inspect the web server or application configuration to determine if JSP files can be executed in the upload directory. Check web.xml for servlet mappings and directory handler configurations. Verify if uploaded .jsp or .jspx files are treated as executable servlets.
    Affected if The server is configured to process JSP files and the upload directory is web-accessible with script execution enabled.
  4. Review upload authorization for low-privileged users
    Test or review the access control configuration to determine if low-privileged or unauthenticated users can access the file upload functionality. Examine role-based access control (RBAC) settings and upload permission policies.
    Affected if Authenticated users with low privileges (non-admin) can access and use the file upload feature.

Your environment is affected if the product has file upload functionality accessible to low-privileged authenticated users, and the server allows uploaded JSP files to be executed as scripts.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement strict file type validation using magic byte analysis, restrict upload directories to prevent script execution, enforce proper authorization checks for upload functionality, and disable JSP execution in upload directories.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
14.0 hours of engineering $2,490
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-12700 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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