dbcve.org
Online Water Billing SystemApplication · Campcodes

CVE-2025-9739

CRITICAL · 9.8 CVSS v3.1 Published 2025-08-31
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 vulnerability has been found in Campcodes Online Water Billing System 1.0. Affected by this issue is some unknown functionality of the file /process.php. The manipulation of the argument Username leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed to the public 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

SQL injection vulnerability in Campcodes Online Water Billing System 1.0's /process.php file. The Username parameter is not properly sanitized, allowing remote attackers to inject malicious SQL queries. With a CVSS 9.8 rating, successful exploitation can lead to full database compromise including unauthorized data access, modification, or deletion.

MitigationImplement proper input validation and use parameterized queries/prepared statements for the Username parameter in process.php. Since the exploit is publicly disclosed, immediate application of the fix is critical.

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 Water Billing 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. Confirm the application is Campcodes Online Water Billing System
    Identify the installed version of the application by checking application files, headers, or the login page for version indicators. Compare against the affected version: 1.0
    Affected if The installed version is exactly 1.0 of Campcodes Online Water Billing System
  2. Locate the process.php file
    Search for the process.php file within the web application's directory structure, typically found in the root or admin folder
    Affected if The process.php file exists in the application directory
  3. Verify the login processing endpoint is accessible
    Access the login page and attempt to submit the login form to confirm the Username parameter is processed by process.php
    Affected if The login form submits to process.php and the Username parameter is accepted
  4. Inspect the Username parameter handling in process.php
    Review the source code of process.php to check if the Username parameter is used in SQL queries without parameterized queries or prepared statements
    Affected if The Username parameter is directly concatenated into SQL queries without sanitization or parameterized queries
  5. Check if the application is exposed to network
    Determine if the web application is accessible from untrusted networks or the internet
    Affected if The application is accessible remotely and the vulnerable process.php endpoint is reachable

A user is affected if they are running Campcodes Online Water Billing System version 1.0 with the process.php file accessible and the Username parameter handled without SQL parameterization.

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.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Implement proper input validation and use parameterized queries/prepared statements for the Username parameter in process.php. Since the exploit is publicly disclosed, immediate application of the fix is critical.

Recommended fix High confidence
  1. 1. Locate the /process.php file in the Online Water Billing System 1.0 installation directory.
  2. 2. Identify the SQL query that handles the Username parameter - look for code using $_POST['Username'] or $_GET['Username'] in mysql_query, mysqli_query, or similar database functions.
  3. 3. Replace the vulnerable query with a parameterized prepared statement using mysqli_prepare() or PDO::prepare(). For example, change 'SELECT * FROM users WHERE Username="$username"' to use '$stmt = $mysqli->prepare("SELECT * FROM users WHERE Username = ?"); $stmt->bind_param("s", $username);'
  4. 4. Ensure all user inputs (Username and any other parameters in process.php) are properly sanitized or bound as parameters.
  5. 5. Test the login functionality to verify the fix works correctly.
  6. 6. Audit other files in the application for similar SQL injection vulnerabilities, as the public exploit suggests this is a systemic issue.
  7. 7. If no fix is available from the vendor, consider migrating to a actively maintained billing system with security updates.

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Online Water Billing System Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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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-2025-9739 in production — separate from our analysis above.

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What this is

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What belongs here
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  • 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