CVE-2024-52440
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 · uneditedDeserialization of Untrusted Data vulnerability in xpresslane Xpresslane Fast Checkout xpresslane-integration-for-woocommerce allows Object Injection.This issue affects Xpresslane Fast Checkout: from n/a through <= 1.0.0.
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 confidenceThis is a PHP Object Injection vulnerability in the Xpresslane Fast Checkout plugin for WooCommerce. The plugin deserializes untrusted data without proper validation, allowing attackers to inject malicious PHP objects. This can lead to remote code execution if suitable 'gadget chains' (vulnerable class methods) exist in the WordPress environment or loaded plugins.
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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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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Verify Xpresslane plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'Xpresslane Fast Checkout' or check the /wp-content/plugins/ directory for an xpresslane folderAffected if The Xpresslane plugin is present on the WordPress site
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Identify the installed plugin versionIn WordPress admin, click on the Xpresslane plugin to view its details, or open the main plugin PHP file and look for a 'Version' comment or constant near the topAffected if The installed version is any version prior to the patched release (no patched version number was provided in this CVE advisory)
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Confirm WooCommerce is activeCheck the WordPress Plugins page to see if WooCommerce is installed and active, or check WooCommerce status at WooCommerce > StatusAffected if WooCommerce is active and the Xpresslane checkout integration is enabled
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Inspect checkout requests for serialized dataUse browser developer tools or a proxy (like Burp Suite) to capture a checkout submission. Look for POST parameters containing serialized PHP objects (O:... or a:...) sent to /?wc-ajax=xpresslane_checkout or similar Xpresslane endpointsAffected if Untrusted serialized data is being sent to the plugin's AJAX endpoints without sanitization
You are affected if the Xpresslane Fast Checkout plugin is installed and its checkout functionality deserializes user-submitted data without validation, allowing potential PHP object injection.
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 dataUpgrade to a patched version of the Xpresslane plugin once available. Until then, disable the plugin if possible, or implement Web Application Firewall rules to detect and block malicious serialized payload patterns in checkout requests.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,088.
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Free · runs locallyCheck whether your project pulls in CVE-2024-52440 — 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-2024-52440 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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- 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
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