dbcve.org
Information ExposureWeakness · CWE-200

CVE-2025-12585

MEDIUM · 5.3 CVSS v3.1 Published 2025-12-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
62/100
Remediation priority · Elevated
Remotely reachable No privileges 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
The MxChat – AI Chatbot for WordPress plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.5.5 via upload filenames. This makes it possible for unauthenticated attackers to extract session values that can subsequently be used to access conversation data.

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

The MxChat WordPress plugin up to version 2.5.5 does not properly sanitize upload filenames, allowing unauthenticated attackers to extract session values through the file upload mechanism. These session values can then be used to access conversation data stored by the plugin.

MitigationUpdate the plugin to a version beyond 2.5.5 when available, or disable the plugin until a security patch is released. If immediate mitigation is required, consider restricting or disabling the file upload functionality.

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
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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 the installed MxChat plugin version
    Navigate to WordPress admin > Plugins > Installed Plugins > locate MxChat and check the version number displayed, or inspect the plugin header in wp-content/plugins/mx-chat/readme.txt
    Affected if The installed version is 2.5.5 or any version prior to the latest patched version
  2. Confirm file upload functionality is enabled
    Access the plugin settings page (MxChat Settings or similar) in the WordPress admin dashboard and look for any file upload, attachment, or media upload feature settings
    Affected if File upload functionality is enabled and accessible to users
  3. Check for unauthenticated file upload endpoint exposure
    Examine the plugin directory for PHP files handling uploads (typically containing 'upload', 'file', or 'attachment' in filename) and test if they respond without authentication, or review the plugin's AJAX actions registered via wp_ajax and wp_ajax_nopriv
    Affected if The plugin registers file upload handlers accessible to unauthenticated users (no auth required)
  4. Inspect conversation/session data storage
    Query the WordPress database tables (search for tables with 'mx_chat', 'conversation', 'session', or 'chat' in the name) or check wp_options for plugin-specific session or conversation data
    Affected if Conversation data or session values are stored by the plugin and could be extracted through malicious filenames

A user is affected if the MxChat plugin version is 2.5.5 or earlier AND file upload functionality is enabled, allowing unauthenticated access to session values and conversation data.

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

Update the plugin to a version beyond 2.5.5 when available, or disable the plugin until a security patch is released. If immediate mitigation is required, consider restricting or disabling the file upload functionality.

Have this fixed Scoped from the published advisory
  • Consultation3.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
17.0 hours of engineering $3,000
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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-2025-12585 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