Php EverywhereWordPress extension · Php Everywhere Project

CVE-2021-23227

HIGH · 8.8 CVSS v3.1 Published 2022-01-13
Fix available
A fix is available. Upgrade to after 2.0.2 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 Alexander Fuchs PHP Everywhere plugin <= 2.0.2 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

Cross-Site Request Forgery (CSRF) vulnerability in PHP Everywhere WordPress plugin versions 2.0.2 and below allows attackers to trick authenticated administrators into performing unintended administrative actions through maliciously crafted requests.

MitigationUpdate PHP Everywhere plugin to version 2.0.3 or later to obtain the patched version. Additionally, ensure WordPress anti-CSRF tokens (nonces) are properly implemented in plugin admin functions.

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
Php EverywhereWordPress extension
Affected:<= 2.0.2

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. Verify PHP Everywhere plugin is installed
    Navigate to WordPress admin dashboard > Plugins > Installed Plugins and look for 'PHP Everywhere' in the list
    Affected if PHP Everywhere plugin appears in the installed plugins list
  2. Check installed PHP Everywhere version
    In the Plugins list, locate PHP Everywhere and view the version number displayed below the plugin name, or check the plugin header in wp-content/plugins/php-everywhere/php-everywhere.php
    Affected if The version number displayed is 2.0.2 or lower (e.g., 2.0.2, 2.0.1, 2.0.0, 1.x.x)
  3. Confirm plugin is active
    In WordPress admin > Plugins, check if PHP Everywhere shows as 'Active' under the plugin status
    Affected if PHP Everywhere is activated and running on the site
  4. Review admin function nonce implementation
    Examine the plugin source code in wp-content/plugins/php-everywhere/ for admin action handlers (typically in files like admin.php or within class files). Look forwp_nonce_field() or check_admin_referer() calls in functions that handle admin form submissions
    Affected if Admin functions that process requests lack proper WordPress nonce verification (wp_nonce_field or check_admin_referer)

Your environment is affected if PHP Everywhere plugin version 2.0.2 or lower is installed and active, and admin functions lack CSRF token 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
Upgrade available Upgrade to a release after 2.0.2
Interim mitigation

Update PHP Everywhere plugin to version 2.0.3 or later to obtain the patched version. Additionally, ensure WordPress anti-CSRF tokens (nonces) are properly implemented in plugin admin functions.

Fix this in Php Everywhere Scoped from the published advisory
  • Consultation2.0 h
  • Implementation1.0 h
  • Testing3.0 h
  • Review / QA1.0 h
7.0 hours of engineering $1,210
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,936.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2021-23227 — 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-2021-23227 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