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Missing AuthorizationWeakness · CWE-862

CVE-2026-54835

HIGH · 7.5 CVSS v3.1 Published 2026-06-26
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
84/100
Remediation priority · High
Remotely reachable No privileges Zero-click 8 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
Unauthenticated Broken Access Control in Five Star Restaurant Menu <= 2.5.2 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

Unauthenticated Broken Access Control vulnerability in the Five Star Restaurant Menu WordPress plugin (versions 2.5.2 and below) allows unauthenticated attackers to access functionality or data that should require proper authorization. The CVSS 7.5 score indicates network-exploitable, low-complexity access to sensitive operations without credentials.

MitigationUpdate Five Star Restaurant Menu plugin to the latest version immediately. If no patched version exists, disable the plugin until a fix is available or implement additional access controls at the web application firewall level.

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
High
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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 plugin is installed
    Navigate to WordPress Admin > Plugins and locate 'Five Star Restaurant Menu' in the installed plugins list
    Affected if The plugin appears in the installed plugins list
  2. Check the installed plugin version
    In WordPress Admin > Plugins, click on 'Five Star Restaurant Menu' to view the plugin details, or inspect the plugin main PHP file header for the 'Version' field
    Affected if The version displayed is 2.5.2 or any version below 2.5.2
  3. Confirm the plugin is active
    In WordPress Admin > Plugins, verify the plugin status shows 'Active' under the Five Star Restaurant Menu plugin
    Affected if The plugin is active and running on the site
  4. Test for unauthenticated access to admin functionality
    Attempt to access common admin AJAX endpoints or plugin-specific URLs without logging in (e.g., wp-admin/admin-ajax.php?action=frmsev_... or similar plugin-specific routes) using a curl request or browser
    Affected if The server returns data or performs actions without requiring login credentials (HTTP 200 instead of redirect to login or 403)

If the Five Star Restaurant Menu plugin is installed, active, and running version 2.5.2 or below, the environment is affected by this unauthenticated broken access control vulnerability.

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 Five Star Restaurant Menu plugin to the latest version immediately. If no patched version exists, disable the plugin until a fix is available or implement additional access controls at the web application firewall level.

Have this fixed Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing2.0 h
  • Review / QA1.0 h
6.0 hours of engineering $1,060
Get help mitigating

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,696.

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-2026-54835 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