Unrestricted File UploadWeakness · CWE-434

CVE-2026-65461

CRITICAL · 9.1 CVSS v3.1 Published 2026-07-23
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
97/100
Remediation priority · Urgent
Remotely reachable Zero-click 4 weeks old

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
Administrator Arbitrary File Upload in Really Simple CSV Importer <= 1.3 versions.

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 confidence

The Really Simple CSV Importer WordPress plugin (versions 1.3 and below) contains an arbitrary file upload vulnerability that allows administrator-level users to upload files of any type to the server. This could enable remote code execution if malicious PHP or other executable files are uploaded and accessed.

MitigationUpgrade to the latest version of Really Simple CSV Importer. If no patched version is available, disable the plugin until a fix is released, or implement server-side restrictions on allowed file types in uploads.

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
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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. Verify plugin is installed
    Check for the 'really-simple-csv-importer' directory in wp-content/plugins/ or view the installed plugins list in WordPress admin under Plugins > Installed Plugins
    Affected if The Really Simple CSV Importer plugin appears in the list of installed plugins
  2. Identify installed version
    Open the main plugin file (usually really-simple-csv-importer.php) and look for the 'Version' header comment in the plugin file header, or check the version displayed next to the plugin name in WordPress admin
    Affected if The version number returned is 1.3 or lower, or no version is displayed (indicating an old unversioned release)
  3. Confirm admin access capability
    Check if the WordPress user performing the check has Administrator-level privileges, as the vulnerability requires an authenticated administrator to exploit
    Affected if The current user has Administrator role and can access plugin settings/import functionality
  4. Inspect upload directory for unexpected files
    Check the WordPress uploads directory (typically wp-content/uploads/) and the plugin directory for any unexpected PHP files, scripts, or executable files that should not be there
    Affected if Any suspicious PHP files, shell scripts, or executable files are found in upload directories that were not intentionally uploaded through legitimate means

If the Really Simple CSV Importer plugin versions 1.3 or below is installed and the user has Administrator access, the environment is vulnerable to arbitrary file upload and potential remote code execution.

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

Upgrade to the latest version of Really Simple CSV Importer. If no patched version is available, disable the plugin until a fix is released, or implement server-side restrictions on allowed file types in uploads.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2026-65461 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-65461 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