W3counterWordPress extension
CVE-2025-28856
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 · uneditedCross-Site Request Forgery (CSRF) vulnerability in dangrossman W3Counter Free Real-Time Web Stats blog-stats-by-w3counter allows Cross Site Request Forgery.This issue affects W3Counter Free Real-Time Web Stats: from n/a through <= 4.1.
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 confidenceCross-Site Request Forgery (CSRF) vulnerability in W3Counter WordPress plugin versions through 4.1 allows attackers to execute unauthorized actions on behalf of authenticated administrators. The plugin lacks proper anti-CSRF token validation on state-changing requests, enabling attackers to trick authenticated users into unknowingly submitting malicious requests.
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
W3counterWordPress extension
<= 4.1CVSS 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 checksWork through these to decide whether this CVE applies to you.
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Confirm W3Counter plugin is installedNavigate to WordPress admin dashboard > Plugins, or check /wp-content/plugins/ directory for w3counter folderAffected if W3Counter plugin folder exists in the WordPress installation
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Identify installed W3Counter versionCheck the plugin main file header (usually w3counter.php) for 'Version:' comment, or view in WordPress Plugins listAffected if Version is 4.1 or lower
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Locate plugin form handlersSearch plugin PHP files for form action attributes, $_POST handling, and state-changing functions (settings saves, database writes, user actions)Affected if Forms exist that handle admin actions without apparent protection
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Inspect forms for nonce fieldsSearch plugin files for wp_nonce_field, wp_nonce_url, or check_admin_referer calls adjacent to form declarationsAffected if Forms handling state changes lack nonce field generation or validation
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Check AJAX endpoints for nonce verificationSearch for wp_ajax_ hooks and verify if nonces are checked via check_ajax_referer or wp_verify_nonce before processingAffected if AJAX endpoints process requests without verifying nonce tokens
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Review Referer/Origin header validationSearch plugin for $_SERVER['HTTP_REFERER'] or $_SERVER['HTTP_ORIGIN'] checks in action handlersAffected if No server-side validation of request origin is performed
Environment is affected if W3Counter plugin version 4.1 or lower is installed AND the plugin's state-changing forms/AJAX endpoints lack nonce token validation.
Generated from the published advisory. Verify against your own configuration.
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 dataImplement anti-CSRF tokens (nonces) using WordPress nonce functions (wp_nonce_field/check_admin_referer) on all forms and AJAX endpoints, and validate the Referer/Origin headers server-side.
Fix this in W3counter
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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 locallyCheck whether your project pulls in CVE-2025-28856 — 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 sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-28856 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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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.
- 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