dbcve.org
Missing AuthorizationWeakness · CWE-862

CVE-2025-24581

MEDIUM · 6.5 CVSS v3.1 Published 2025-04-17
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
74/100
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
Missing Authorization vulnerability in Themefic Instantio instantio allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Instantio: from n/a through <= 3.3.7.

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 Instantio WordPress/WooCommerce plugin has a missing authorization vulnerability where the access control security levels are incorrectly configured, allowing unauthenticated or unauthorized users to access functionality they should not have access to. This is a classic broken access control (OWASP Top 10) issue where proper capability checks or role verifications are absent or flawed in certain code paths.

MitigationImplement proper authorization checks (current_user_can, capability verification) on all sensitive functions and endpoints, ensuring role-based access control (RBAC) is correctly enforced at every access point.

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
None
Integrity
Low
Availability
Low

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

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 Instantio plugin is installed and active
    In WordPress admin, go to Plugins > Installed Plugins and look for 'Instantio' in the list. Confirm it shows as 'Active'. Alternatively, check the /wp-content/plugins/ directory for the instantio folder and examine the main plugin file header for version information.
    Affected if The plugin is installed and active in WordPress, making the environment potentially vulnerable to the access control flaw.
  2. Determine the installed Instantio version
    Open the main Instantio plugin file (typically instantio/instantio.php) and locate the 'Version' header in the plugin comment block at the top. Alternatively, in WordPress admin, click on the plugin name to view its details where the version is displayed.
    Affected if The installed version falls within the affected version range where the authorization checks are missing.
  3. Identify sensitive AJAX actions and endpoints in the plugin
    Search the plugin files for add_action('wp_ajax_...) and add_action('wp_ajax_nopriv_...) calls. The _nopriv_ actions are accessible to unauthenticated users. List all endpoints that handle sensitive operations like user data, orders, or settings.
    Affected if The plugin exposes AJAX endpoints accessible to unauthenticated users (wp_ajax_nopriv_) for sensitive functionality.
  4. Verify capability checks are present on sensitive functions
    Examine the PHP files containing the AJAX handlers or sensitive code paths identified in step 3. Search for 'current_user_can' or 'wp_get_current_user' calls. Confirm these checks are present at the very beginning of each sensitive function, before any data processing occurs.
    Affected if Sensitive functions and AJAX endpoints lack proper current_user_can() capability checks or role verification, indicating the broken access control vulnerability is present.
  5. Test unauthenticated access to sensitive plugin functionality
    Using a tool like Burp Suite or curl, attempt to access identified AJAX endpoints or direct function calls without providing authentication credentials. Check if the requests succeed when they should require login or admin privileges.
    Affected if Unauthenticated or unauthorized requests successfully execute sensitive operations that should require authorization, confirming the vulnerability is exploitable.

A user is affected if the Instantio plugin is installed, the version matches the affected range, and sensitive functions lack proper capability checks allowing unauthorized access.

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 proper authorization checks (current_user_can, capability verification) on all sensitive functions and endpoints, ensuring role-based access control (RBAC) is correctly enforced at every access point.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA4.0 h
20.0 hours of engineering $3,560
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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-2025-24581 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
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  • Version or environment caveats, and links to real fixes
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