CVE-2023-49271
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 · uneditedHotel Management v1.0 is vulnerable to multiple authenticated Reflected Cross-Site Scripting vulnerabilities. The 'check_out_date' parameter of the reservation.php resource is copied into the HTML document as plain text between tags. Any input is echoed unmodified in the application's response.
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 confidenceHotel Management v1.0 contains a reflected Cross-Site Scripting (XSS) vulnerability in reservation.php where the 'check_out_date' parameter is copied directly into the HTML response without sanitization or encoding. An authenticated attacker can inject malicious JavaScript that executes in the victim's browser, potentially stealing session cookies or performing unauthorized actions.
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
- Low
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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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Identify Hotel Management System installationLocate the web application files and check for version identification markers such as version strings in configuration files, headers, or the main index page. Look for files like version.php, config.php, or footer/copyright text displaying '1.0'Affected if The installed version is Jayesh Hotel Management System 1.0
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Locate reservation.phpSearch the web application directory tree for the file reservation.php. Common paths may include /, /booking/, /reservations/, or /php/ directoriesAffected if reservation.php exists in the application
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Inspect check_out_date parameter handlingOpen reservation.php and search for the check_out_date parameter. Examine the code around lines where this parameter is received (via $_GET, $_POST, or $_REQUEST) and copied into HTML outputAffected if The check_out_date parameter value is directly inserted into HTML without htmlspecialchars() or equivalent encoding
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Verify vulnerability contextConfirm that the code reflects user input from check_out_date directly into the HTML response without sanitization functions such as htmlspecialchars(), htmlentities(), or output encoding librariesAffected if User-supplied check_out_date data appears in the HTML source without encoding or validation checks
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Confirm authentication requirementCheck if reservation.php or its parent logic requires authentication (login session) before the vulnerable parameter can be abusedAffected if An attacker needs authenticated access to submit the check_out_date parameter to trigger the XSS
If Hotel Management System v1.0 is installed and reservation.php reflects the check_out_date parameter into HTML without encoding, the environment is affected by this XSS vulnerability.
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 input validation for the check_out_date parameter and apply context-aware output encoding when reflecting user data in HTML. Additionally, configure Content-Security-Policy headers to mitigate XSS execution.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-49271 — 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-2023-49271 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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