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Authorization Bypass (IDOR)Weakness · CWE-639

CVE-2026-22396

MEDIUM · 5.4 CVSS v3.1 Published 2026-01-22
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
60/100
Remediation priority · Elevated
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
Authorization Bypass Through User-Controlled Key vulnerability in Mikado-Themes Fiorello fiorello allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Fiorello: from n/a through <= 1.0.

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

An authorization bypass vulnerability in the Fiorello theme allows attackers to manipulate user-controlled keys to bypass access control checks, potentially enabling unauthorized access to sensitive functionality or resources that should be restricted.

MitigationUpdate Fiorello theme to the latest version and audit the access control implementation to ensure authorization decisions are not based on user-controllable input parameters.

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
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:N/AC:L/PR:L/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. Identify Fiorello theme installation
    Locate the theme files in your CMS/website directory - typically under themes/ or wp-content/themes/ directory, looking for a folder named 'fiorello' or similar
    Affected if Fiorello theme folder exists in the installation
  2. Check Fiorello theme version
    Inspect the theme's style.css, info.json, or theme.json file for the 'Version' header or field
    Affected if Installed version is older than the latest patched version or cannot be determined (indicating potentially unpatched)
  3. Audit access control implementations
    Search theme PHP files for authorization/permission checks that use $_GET, $_POST, $_REQUEST, or query parameters as the basis for access decisions
    Affected if Authorization logic relies on user-controllable input parameters (e.g., user IDs, keys, or tokens passed via URL)
  4. Review API endpoints and AJAX handlers
    Examine theme files for action/filter hooks (add_action, add_filter) that handle sensitive operations and check their capability checks
    Affected if AJAX or API endpoints lack proper capability checks or use user-supplied data for authorization

You are affected if the Fiorello theme is installed and its access control logic relies on user-manipulatable parameters rather than server-side validation.

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 Fiorello theme to the latest version and audit the access control implementation to ensure authorization decisions are not based on user-controllable input parameters.

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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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-2026-22396 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