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Online Hotel Reservation SystemApplication · Fabian

CVE-2025-11354

CRITICAL · 9.8 CVSS v3.1 Published 2025-10-07
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Public exploit Remotely reachable No privileges Zero-click

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 · unedited
A flaw has been found in code-projects Online Hotel Reservation System 1.0. Affected is an unknown function of the file /admin/addslideexec.php. Executing manipulation of the argument image can lead to unrestricted upload. The attack may be performed from remote. The exploit has been published and may 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 confidence

The Online Hotel Reservation System 1.0 contains an unrestricted file upload vulnerability in /admin/addslideexec.php. By manipulating the 'image' parameter, an unauthenticated remote attacker can upload arbitrary files (including malicious PHP scripts) to the server, potentially achieving remote code execution.

MitigationRestrict access to /admin/addslideexec.php to authenticated administrators only, implement strict server-side validation of file type/extension/MIME content before saving uploads, store uploaded files outside the webroot, and disable script execution in the upload directory.

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
Online Hotel Reservation SystemApplication
Affected:= 1.0

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify if Online Hotel Reservation System is deployed
    Locate the application by checking for the presence of index.php in the web root or searching for common paths such as /, /hotel, /reservation, or /booking. Look for pages displaying 'Online Hotel Reservation System' branding.
    Affected if The application is present on the server.
  2. Verify the installed version is 1.0
    Check the source code for a version identifier, or access /admin which may display the version number. Common locations include a footer file, an about page, or the admin dashboard header.
    Affected if The version is 1.0.
  3. Confirm the vulnerable endpoint is accessible
    Attempt to access http://target/admin/addslideexec.php via HTTP request. No authentication should be required to reach this script.
    Affected if The endpoint returns a response (200 OK) without requiring login credentials.
  4. Verify file upload functionality exists
    Send a POST request to /admin/addslideexec.php with a test file using the 'image' parameter, or inspect the source code of addslideexec.php to confirm it processes file uploads without proper validation.
    Affected if The script accepts file uploads via the 'image' parameter without requiring authentication.
  5. Check upload directory allows script execution
    Inspect the upload directory configuration in the web server (Apache/nginx) and verify if .php or other script files can be executed from the directory where uploaded files are stored.
    Affected if Uploaded files are stored within the webroot and script execution is not disabled for that directory.

If the Online Hotel Reservation System version 1.0 is running and the /admin/addslideexec.php endpoint is accessible without authentication, the environment is affected by this vulnerability.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Restrict access to /admin/addslideexec.php to authenticated administrators only, implement strict server-side validation of file type/extension/MIME content before saving uploads, store uploaded files outside the webroot, and disable script execution in the upload directory.

Fix this in Online Hotel Reservation System Scoped from the published advisory
  • Consultation4.0 h
  • Implementation6.0 h
  • Testing3.0 h
  • Review / QA2.0 h
15.0 hours of engineering $2,690
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-11354 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • 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