CVE-2026-56027
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 · uneditedCustomer Arbitrary File Upload in Booster for WooCommerce <= 8.0.1 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 · high confidenceThis is an unauthenticated arbitrary file upload vulnerability in the Booster for WooCommerce WordPress plugin affecting versions 8.0.1 and below. The vulnerability allows customers (likely unauthenticated or low-privileged users) to upload arbitrary files to the server, potentially leading to remote code execution. With a CVSS 9.9 rating, the exploit requires no user authentication and has complete impact on confidentiality, integrity, and availability.
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
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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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Check installed plugin versionNavigate to WordPress admin > Plugins > Installed Plugins > Booster for WooCommerce, or read the main plugin file (e.g., /wp-content/plugins/booster-for-woocommerce/booster.php) to find the 'Version' headerAffected if The installed version is 8.0.1 or lower
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Identify if file upload modules are enabledIn WordPress admin, go to Booster > Settings and look for modules related to file upload, product add-ons, or file downloads. Check if any of these modules are enabledAffected if Any file upload, product file upload, or similar module is enabled in the Booster settings
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Inspect WordPress uploads directoryCheck the /wp-content/uploads/ directory (and subdirectories) for unexpected or suspicious file types (e.g., .php, .phtml, .exe) that were uploaded recentlyAffected if Unknown or malicious file types exist in uploads directories that were not intentionally uploaded by administrators
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Review access logs for file upload requestsExamine web server access logs (Apache/nginx) for POST requests to Booster-related endpoints, particularly those containing 'upload' or 'file' in the URL path from unauthenticated sourcesAffected if Unauthenticated POST requests to Booster file upload endpoints are present in logs
You are affected if the Booster for WooCommerce plugin version is 8.0.1 or below AND any file upload functionality is enabled on the site, as the vulnerability allows unauthenticated arbitrary file uploads.
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 dataUpdate Booster for WooCommerce to the latest patched version immediately. As a temporary measure, disable the plugin or use a WAF to block file upload endpoints until patched.
- Consultation3.0 h
- Implementation6.0 h
- Testing5.0 h
- Review / QA3.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,752.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-56027 — 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-2026-56027 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