Stout Google CalendarWordPress extension · Mattmckenny

CVE-2023-45273

HIGH · 8.8 CVSS v3.1 Published 2023-10-16
Fix available
A fix is available. Upgrade to after 1.2.3 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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
Cross-Site Request Forgery (CSRF) vulnerability in Matt McKenny Stout Google Calendar plugin <= 1.2.3 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

Cross-Site Request Forgery (CSRF) vulnerability in the Matt McKenny Stout Google Calendar WordPress plugin affecting versions 1.2.3 and below. The vulnerability allows attackers to trick authenticated users into unknowingly submitting malicious requests to the affected plugin, potentially performing unauthorized actions.

MitigationUpdate the plugin to the latest version to obtain the security fix. If no update is available, consider disabling the plugin until a patched version is released.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Stout Google CalendarWordPress extension
Affected:<= 1.2.3

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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. Check the plugin version
    In the WordPress admin dashboard, go to Plugins > Installed Plugins. Find 'Mattmckenny Stout Google Calendar' and view the version number listed under the plugin name. Alternatively, check the plugin's main PHP file header for the 'Version' tag.
    Affected if The installed version is 1.2.3 or lower.
  2. Verify the plugin is active
    In the WordPress admin dashboard, go to Plugins > Installed Plugins. Confirm that 'Mattmckenny Stout Google Calendar' shows as 'Active' rather than 'Inactive' or 'Must Use'.
    Affected if The plugin is installed and active.
  3. Identify plugin endpoints and forms
    Examine the plugin directory (typically at wp-content/plugins/mattmckenny-stout-google-calendar/) for PHP files handling form submissions or admin actions. Look for functions that process user input without verifying nonce tokens or CSRF tokens.
    Affected if The plugin processes requests without proper CSRF token validation on admin actions or frontend forms.
  4. Check authentication requirements
    Review the plugin code to determine whether the vulnerable endpoints require authenticated users (such as administrators or editors) to be logged in. CSRF attacks typically target authenticated sessions.
    Affected if The plugin performs privileged actions (like saving settings or modifying calendar data) for logged-in users without CSRF protection.

You are affected if the Mattmckenny Stout Google Calendar plugin is installed at version 1.2.3 or below and is currently active in your WordPress environment.

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
Upgrade available Upgrade to a release after 1.2.3
Interim mitigation

Update the plugin to the latest version to obtain the security fix. If no update is available, consider disabling the plugin until a patched version is released.

Fix this in Stout Google Calendar Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing2.0 h
  • Review / QA1.0 h
9.0 hours of engineering $1,600
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-45273 — 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-2023-45273 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

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