CVE-2026-5551
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 security flaw has been discovered in itsourcecode Free Hotel Reservation System 1.0. This vulnerability affects unknown code of the file /hotel/admin/login.php of the component Parameter Handler. The manipulation of the argument email results in sql injection. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.
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 confidenceSQL injection vulnerability in itsourcecode Free Hotel Reservation System 1.0 allows remote attackers to inject malicious SQL queries through the email parameter in /hotel/admin/login.php. The vulnerable parameter handler does not properly sanitize user input before using it in database queries.
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
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 the application is installedLocate the itsourcecode Free Hotel Reservation System installation directory on the web server. Check for the presence of the /hotel/admin/ path.Affected if The application files exist on the server
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Verify the product versionCheck the application version information, typically found in a version file, README, or footer of the admin pages. Compare against version 1.0.Affected if The installed version is 1.0
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Locate the vulnerable login fileNavigate to /hotel/admin/login.php in the web root and verify the file exists.Affected if The file /hotel/admin/login.php is present
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Inspect the email parameter handlingOpen /hotel/admin/login.php and examine the code around the email input field. Look for SQL queries that directly use the email POST/GET parameter without prepared statements, parameterized queries, or proper sanitization functions.Affected if The email parameter is used directly in SQL queries without sanitization or prepared statements
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Determine if the admin panel is accessibleAttempt to access the login page via HTTP/HTTPS to confirm the endpoint is reachable over the network.Affected if The /hotel/admin/login.php endpoint is publicly or internally accessible
A user is affected if they are running itsourcecode Free Hotel Reservation System version 1.0 with the /hotel/admin/login.php file accessible and the email parameter handled without prepared statements or input sanitization in SQL queries.
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) in login.php and validate/sanitize all user inputs. Apply the principle of least privilege to database accounts. If a patch is available from the vendor, apply it immediately.
- Consultation3.0 h
- Implementation8.0 h
- Testing4.0 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 $4,800.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-5551 — 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-2026-5551 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
- No spam, self-promotion, credentials, or personal data