CVE-2024-53476
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 · uneditedA race condition vulnerability in SimplCommerce at commit 230310c8d7a0408569b292c5a805c459d47a1d8f allows attackers to bypass inventory restrictions by simultaneously submitting purchase requests from multiple accounts for the same product. This can lead to overselling when stock is limited, as the system fails to accurately track inventory under high concurrency, resulting in potential loss and unfulfilled orders.
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 confidenceRace condition in SimplCommerce's inventory management allows attackers to bypass inventory restrictions by simultaneously submitting purchase requests from multiple accounts for the same product. The system fails to accurately track inventory under high concurrency, resulting in overselling when stock is limited.
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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
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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Locate SimplCommerce installationFind the SimplCommerce deployment directory or running instance. Check for the presence of SimplCommerce.Core, SimplCommerce.WebHost, or similar SimplCommerce-specific DLLs and configuration files in the application root.Affected if SimplCommerce is not present in the environment - if not found, the system is not affected.
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Identify SimplCommerce versionInspect the project file (SimplCommerce.csproj), assembly metadata, or package.json for the SimplCommerce version number. Look in the wwwroot/admin folder or the main project directory for version information.Affected if Unable to determine version or version is unpatched for CVE-2024-53476 - compare against any available patch releases.
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Verify inventory management module is activeCheck the SimplCommerce database for tables related to inventory (such as ProductInventory, InventoryTrackers, or similar). Confirm that products have stock tracking enabled in the product catalog configuration.Affected if Inventory tracking is disabled or no inventory-related tables exist - if stock management is not in use, the race condition does not apply.
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Inspect order checkout code pathExamine the order placement or checkout code in the SimplCommerce solution. Look for the inventory decrement logic during order creation, typically in services like OrderService, CheckoutService, or InventoryService. Identify whether the check-and-decrement operation lacks atomic transactional protection.Affected if The inventory decrement logic exists without pessimistic locking, optimistic concurrency, or explicit transaction scope - this indicates the vulnerable code path is present.
The environment is affected if SimplCommerce is running with inventory tracking enabled and the inventory decrement logic during checkout lacks proper database-level locking or transactional atomicity.
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 proper database-level locking (pessimistic or optimistic locking) and transactional integrity for inventory operations to ensure atomic check-and-decrement sequences.
- 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.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-53476 — 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-2024-53476 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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