CVE-2026-78185: Sales and Inventory System SQLi Vulnerability

CVE-2026-78185 Overview

CVE-2026-78185 is a SQL injection vulnerability in itsourcecode Sales and Inventory System 1.0. The flaw resides in /pages/cust_edit.php, where the ID parameter is passed to a backend database query without proper sanitization. An authenticated remote attacker can manipulate this parameter to inject arbitrary SQL statements. The exploit has been made public, increasing the likelihood of opportunistic abuse against exposed installations. The weakness is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component.

Critical Impact
Remote SQL injection through the ID parameter of cust_edit.php allows attackers with low-level privileges to read, modify, or delete data in the application database.

Affected Products

itsourcecode Sales and Inventory System 1.0
Component: /pages/cust_edit.php
Vulnerable parameter: ID

Discovery Timeline

2026-08-24 - CVE-2026-78185 published to NVD
2026-08-27 - Last updated in NVD database

Technical Details for CVE-2026-78185

Vulnerability Analysis

The vulnerability is a first-order SQL injection in the customer edit workflow of the Sales and Inventory System. When a user requests /pages/cust_edit.php, the application accepts an ID argument that identifies the record to edit. That value is concatenated directly into a SQL statement rather than being bound as a parameter. As a result, attacker-controlled SQL syntax executes in the context of the application's database user.

Because the attack is delivered over HTTP, no local access is required. An authenticated session with minimal privileges is sufficient to reach the vulnerable endpoint. Public exploit details are available through VulDB and the associated GitHub issue, lowering the barrier for reuse.

Root Cause

The root cause is missing input validation and the absence of parameterized queries in the handler for cust_edit.php. User-supplied data from the ID field is trusted and passed directly to the SQL execution layer, matching the pattern described in [CWE-74].

Attack Vector

An attacker sends a crafted HTTP request to /pages/cust_edit.php with a malicious ID value containing SQL metacharacters and payload clauses. The injected clauses alter the query logic, enabling data exfiltration through UNION-based, error-based, or boolean/time-based techniques. Successful exploitation exposes customer records, inventory data, and potentially credential material stored in the database.

No verified proof-of-concept code is published in the NVD entry. Refer to the VulDB CVE Details and VulDB Vulnerability Listing for additional technical context.

Detection Methods for CVE-2026-78185

Indicators of Compromise

HTTP requests to /pages/cust_edit.php containing SQL metacharacters such as ', ", --, /*, UNION, SELECT, or SLEEP( in the ID parameter.
Web server or application logs showing repeated 500 errors or unusually long response times tied to cust_edit.php.
Database error strings surfaced in HTTP responses that reference MySQL/MariaDB syntax.

Detection Strategies

Deploy web application firewall (WAF) signatures that flag SQL injection payloads targeting the ID query string parameter.
Enable database query logging and alert on SELECT, UPDATE, or UNION statements originating from the customer edit workflow that reference tables outside its expected scope.
Correlate authentication logs with anomalous request patterns to cust_edit.php to identify low-privilege accounts probing the endpoint.

Monitoring Recommendations

Baseline normal request volume and parameter length for /pages/cust_edit.php and alert on deviations.
Monitor for outbound data transfers from the application host that follow spikes in requests to the vulnerable page.
Track failed logins followed by successful sessions that immediately access customer edit functions.

How to Mitigate CVE-2026-78185

Immediate Actions Required

Restrict network access to the Sales and Inventory System to trusted internal ranges until a fix is applied.
Disable or remove /pages/cust_edit.php if the customer edit feature is not required in production.
Rotate database credentials used by the application if exploitation is suspected, and audit customer and inventory tables for tampering.

Patch Information

No vendor patch is referenced in the NVD entry at the time of publication. Monitor the IT Source Code Homepage and the VulDB Submission for updates. Until a vendor fix is released, apply the workarounds below.

Workarounds

Enforce parameterized queries or prepared statements in cust_edit.php by replacing string concatenation with PDO or mysqli bound parameters.
Validate that the ID parameter is a positive integer before it reaches the database layer, rejecting all non-numeric input.
Apply least-privilege permissions to the database account used by the application so that injected queries cannot access unrelated schemas.
Deploy WAF rules that block common SQL injection payloads on the ID parameter of the customer edit endpoint.

bash

# Example ModSecurity rule to block SQLi on the vulnerable parameter
SecRule REQUEST_URI "@contains /pages/cust_edit.php" \
    "chain,phase:2,deny,status:403,id:1026078185,\
    msg:'CVE-2026-78185 SQLi attempt on cust_edit.php ID parameter'"
    SecRule ARGS:ID "@rx (?i)(union(\s|/\*.*\*/)+select|sleep\s*\(|--|;|'|\")" "t:none,t:urlDecodeUni"