CVE-2026-14692 Overview
CVE-2026-14692 is a SQL injection vulnerability in SourceCodester Multi-Vendor Online Grocery Management System versions 1.0 and 5.7.26. The flaw resides in the save_shop_type function within classes/Master.php, which processes POST parameters without proper sanitization. Attackers with low-privilege authenticated access can manipulate the vulnerable POST parameter to inject arbitrary SQL statements. The vulnerability is exploitable remotely over the network, and public exploit details are already available. The weakness is classified under [CWE-74] as improper neutralization of special elements in output used by a downstream component.
Critical Impact
Authenticated remote attackers can inject SQL statements through the save_shop_type POST handler, exposing shop data stored in the underlying database.
Affected Products
- SourceCodester Multi-Vendor Online Grocery Management System 1.0
- SourceCodester Multi-Vendor Online Grocery Management System 5.7.26
- Component: classes/Master.php POST parameter handler
Discovery Timeline
- 2026-07-05 - CVE-2026-14692 published to NVD
- 2026-07-06 - Last updated in NVD database
Technical Details for CVE-2026-14692
Vulnerability Analysis
The vulnerability affects the save_shop_type function inside classes/Master.php, a server-side handler responsible for creating or updating shop type entries. The function consumes POST parameters directly and concatenates them into SQL statements without parameterization or input sanitization. This allows an authenticated attacker to break out of the intended query context and append attacker-controlled SQL clauses.
Exploitation requires only network access and a low-privilege account on the application. Because the injection occurs in a backend administrative handler, an attacker can read, modify, or exfiltrate rows in the underlying database. The public disclosure of technical details raises the likelihood of opportunistic scanning against exposed instances.
Root Cause
The root cause is missing input validation and lack of prepared statements in the save_shop_type method. User-supplied POST values flow into SQL queries without escaping or binding, matching the [CWE-74] pattern of unsanitized data reaching a downstream SQL interpreter.
Attack Vector
An attacker sends a crafted HTTP POST request to the endpoint that invokes save_shop_type, embedding SQL metacharacters within the affected parameter. The manipulated payload alters the executed query. See the GitHub Issue Discussion and VulDB Vulnerability Detail for technical write-ups.
Detection Methods for CVE-2026-14692
Indicators of Compromise
- POST requests to endpoints resolving to classes/Master.php containing SQL metacharacters such as single quotes, UNION SELECT, --, or /* sequences.
- Web server or PHP error logs referencing SQL syntax errors originating from the save_shop_type function.
- Unexpected new or modified rows in shop type database tables outside of legitimate administrative activity.
Detection Strategies
- Deploy web application firewall rules that inspect POST bodies destined for Master.php for SQL injection signatures.
- Enable database query logging and alert on queries containing tautologies or stacked statements originating from the grocery application user.
- Correlate authenticated session activity with anomalous POST parameter lengths or encoded payloads targeting the shop management endpoints.
Monitoring Recommendations
- Monitor authentication logs for low-privilege accounts that suddenly exercise administrative endpoints.
- Track database error rates and failed query patterns as leading indicators of injection probing.
- Review outbound network connections from the database host for signs of data exfiltration following suspicious POST traffic.
How to Mitigate CVE-2026-14692
Immediate Actions Required
- Restrict network exposure of the Multi-Vendor Online Grocery Management System to trusted networks or VPN access only.
- Audit and disable unused low-privilege accounts that can reach the save_shop_type endpoint.
- Deploy WAF signatures blocking SQL injection payloads on all POST requests to classes/Master.php.
Patch Information
No official vendor patch has been published for CVE-2026-14692 at the time of NVD publication. Refer to the VulDB CVE Report and the SourceCodester Blog Post for future vendor updates. Organizations should apply source-level fixes by rewriting save_shop_type to use parameterized queries (PDO prepared statements or mysqli bound parameters) and validating input types before persistence.
Workarounds
- Place the application behind a reverse proxy with strict input filtering and rate limiting on the affected endpoint.
- Apply the principle of least privilege to the database account used by the application, removing DDL and cross-table SELECT rights where not needed.
- If a patch cannot be applied, temporarily disable the shop type management feature or restrict it to a small set of source IP addresses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
