CVE-2025-13259: Campcodes Supplier Management SQLI Flaw

CVE-2025-13259 Overview

CVE-2025-13259 is a SQL injection vulnerability in Campcodes Supplier Management System 1.0. The flaw resides in the /manufacturer/edit_unit.php script, where the ID parameter is passed into a database query without proper sanitization. An authenticated remote attacker can manipulate the ID argument to inject arbitrary SQL statements. The vulnerability is tracked under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) and CWE-74 (Improper Neutralization of Special Elements in Output). A public exploit reference has been published through VulDB and GitHub.

Critical Impact
Attackers with low-privilege access can read, modify, or delete supplier and manufacturer data stored in the backend database through crafted requests against edit_unit.php.

Affected Products

Campcodes Supplier Management System 1.0
Component: /manufacturer/edit_unit.php
Vulnerable parameter: ID

Discovery Timeline

2025-11-17 - CVE-2025-13259 published to NVD
2026-04-29 - Last updated in NVD database

Technical Details for CVE-2025-13259

Vulnerability Analysis

The vulnerability exists in the edit_unit.php endpoint under the /manufacturer/ directory of Campcodes Supplier Management System 1.0. The application accepts the ID request parameter and concatenates it directly into a SQL query without parameterization or input validation. An attacker submits crafted input that breaks out of the intended query context and appends arbitrary SQL clauses.

Because the attack vector is network-based and requires only low privileges, any authenticated user of the application can trigger the flaw. The exploit reference has been published, lowering the barrier for opportunistic abuse. The EPSS probability stands at 0.039%, indicating low predicted exploitation activity in the near term.

Root Cause

The root cause is the absence of prepared statements or input sanitization when handling the ID GET or POST parameter. PHP code in edit_unit.php interpolates user-controlled data directly into a SQL string passed to the MySQL driver. This pattern allows attackers to inject UNION SELECT, boolean-based, or time-based payloads to extract or manipulate database contents.

Attack Vector

An attacker authenticates to the Supplier Management System with low-privilege credentials and sends a crafted request to /manufacturer/edit_unit.php with a malicious ID value. The injected SQL executes within the database context used by the application. Successful exploitation enables data extraction from supplier records, modification of inventory or pricing fields, and potential authentication bypass through credential table manipulation.

The vulnerability is described in prose because no verified proof-of-concept code is republished here. See the GitHub CVE Issue and VulDB #332594 for the published technical reference.

Detection Methods for CVE-2025-13259

Indicators of Compromise

HTTP requests to /manufacturer/edit_unit.php containing SQL metacharacters such as single quotes, UNION, SELECT, SLEEP, or -- in the ID parameter.
Anomalous database error messages logged by PHP or MySQL referencing edit_unit.php.
Unexpected response time variations on edit_unit.php consistent with time-based blind SQL injection.

Detection Strategies

Deploy web application firewall (WAF) rules that flag SQL keywords and tautologies in the ID parameter for /manufacturer/edit_unit.php.
Enable MySQL general query logging temporarily to identify queries originating from the vulnerable endpoint with abnormal syntax.
Correlate authenticated session activity with database query patterns to identify low-privilege users issuing high-volume or malformed requests.

Monitoring Recommendations

Monitor PHP error logs for mysqli or PDO exceptions tied to edit_unit.php.
Alert on outbound data transfer spikes from the database tier following requests to the manufacturer module.
Track failed and successful authentication events alongside requests to the vulnerable script to identify reconnaissance.

How to Mitigate CVE-2025-13259

Immediate Actions Required

Restrict access to /manufacturer/edit_unit.php at the web server or reverse proxy layer until a fix is applied.
Revoke or rotate database credentials used by the application if exploitation is suspected.
Audit the manufacturer and related tables for unauthorized changes to supplier or pricing data.

Patch Information

No vendor advisory or official patch has been published by Campcodes at the time of NVD publication. Refer to the CampCodes Security Resource for vendor updates. Organizations running Supplier Management System 1.0 should consider replacing the affected installation or applying a custom code fix that uses parameterized queries via mysqli_prepare or PDO prepared statements.

Workarounds

Implement server-side input validation that enforces a numeric type on the ID parameter before it reaches edit_unit.php.
Deploy a WAF rule set such as OWASP Core Rule Set with SQL injection signatures enabled in blocking mode for the /manufacturer/ path.
Apply least-privilege principles to the MySQL user account so that the application cannot perform DROP, ALTER, or cross-database queries.
Disable or remove the manufacturer edit functionality if it is not required for business operations.

bash

# Example WAF rule (ModSecurity) to block SQL injection on the vulnerable parameter
SecRule REQUEST_URI "@beginsWith /manufacturer/edit_unit.php" \
    "chain,phase:2,deny,status:403,id:1013259,msg:'CVE-2025-13259 SQLi attempt'"
    SecRule ARGS:ID "@rx (?i)(union|select|sleep|benchmark|--|';)" "t:none,t:urlDecode"