CVE-2023-5303
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, which was classified as problematic, was found in Online Banquet Booking System 1.0. Affected is an unknown function of the file /view-booking-detail.php of the component Account Detail Handler. The manipulation of the argument username leads to cross site scripting. It is possible to launch the attack remotely. VDB-240942 is the identifier assigned to this vulnerability.
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 confidenceA reflected cross-site scripting (XSS) vulnerability exists in the Online Banquet Booking System 1.0 within the view-booking-detail.php file. The username parameter is not properly sanitized before being output in the page, allowing an attacker to inject malicious JavaScript that executes in the victim's browser.
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
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/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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Confirm Phpgurukul Online Banquet Booking System is installedLocate the web application files on the server. Look for the typical installation directory (often /var/www/html, /www, or similar web root). Identify the application by locating its main index file or identifying the product name in source code comments/headers.Affected if The application files for Phpgurukul Online Banquet Booking System are present on the server
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Verify the application version is 1.0Check for a version file, README, or version comment in the source code. Look for version indicators in the main PHP files or configuration files. Common locations include version.php, about.php, or the footer/include files of the application.Affected if The installed version is exactly 1.0 (note: other versions may also be affected but this CVE specifically targets 1.0)
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Locate view-booking-detail.phpSearch the application directory for the file view-booking-detail.php. This file handles the booking detail display functionality.Affected if The file view-booking-detail.php exists in the application
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Inspect username parameter handling in view-booking-detail.phpOpen view-booking-detail.php in a text editor or use 'grep' to search for the username parameter. Examine how the username is retrieved (e.g., $_GET, $_POST) and how it is output back to the page (e.g., echo, print). Look for whether the value is being escaped or sanitized before output.Affected if The username parameter is output in the page without proper sanitization or encoding (the code directly echoes the parameter without using htmlspecialchars or equivalent)
A user is affected if they are running Phpgurukul Online Banquet Booking System version 1.0 with the view-booking-detail.php file present and the username parameter is not being escaped before output in that file.
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 and output encoding/escaping for the username parameter in view-booking-detail.php. Use context-appropriate escaping functions and consider implementing a Content Security Policy (CSP) as a defense-in-depth measure.
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- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-5303 — 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-2023-5303 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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