CVE-2026-0591
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 vulnerability was identified in code-projects Online Product Reservation System 1.0. The impacted element is an unknown function of the file /app/checkout/update.php of the component Cart Update Handler. Such manipulation of the argument id/qty leads to sql injection. It is possible to launch the attack remotely. The exploit is publicly available and might be used.
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 confidenceSQL injection vulnerability in the Cart Update Handler of Online Product Reservation System 1.0 at /app/checkout/update.php. The id and qty parameters are not properly sanitized, allowing attackers to inject malicious SQL queries remotely.
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= 1.0CVSS 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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Confirm Online Product Reservation System installationLocate the application directory (commonly in web root, /var/www/html, or /app). Look for version.php, README, or other version indicator files. Check for files named 'update.php' in checkout-related subdirectories.Affected if The application is Fabian Online Product Reservation System version 1.0 and contains a file named update.php in a checkout or similar cart-related path.
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Verify vulnerable file existsInspect the application's file structure. Search for update.php within paths containing 'cart', 'checkout', or similar e-commerce functionality. Common paths include /app/checkout/update.php, /cart/update.php, or /includes/update.php.Affected if The file update.php exists in a cart or checkout-related directory within the application.
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Inspect update.php for unsafe SQL handlingOpen the update.php file and examine the code handling 'id' and 'qty' parameters. Look for SQL queries that concatenate or interpolate these parameters directly without using prepared statements, parameter binding, or escaping functions.Affected if The code contains SQL queries using $id or $qty variables directly in the query string without parameterized queries or proper sanitization.
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Determine if application database is exposedCheck if the web application is accessible over the network. Review database configuration files (config.php, db.php, .env) to confirm database connectivity. Test whether the update.php endpoint accepts external requests.Affected if The application is accessible via HTTP/HTTPS and the update.php endpoint can be reached, allowing potential injection via id or qty parameters.
The environment is affected if the Fabian Online Product Reservation System version 1.0 is installed, the vulnerable update.php file exists, and it contains SQL queries that directly use id or qty parameters without prepared statements.
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 dataReplace dynamic SQL queries with parameterized queries/prepared statements and implement proper input validation on the id and qty parameters. Consider restricting network access to this endpoint until patched.
- Consultation2.0 h
- Implementation3.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-0591 — 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-2026-0591 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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- Version or environment caveats, and links to real fixes
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