CVE-2026-78247 Overview
CVE-2026-78247 is a SQL injection vulnerability in SourceCodester Simple Online Food Ordering System 1.0. The flaw exists in /fos/admin/ajax.php?action=confirm_order, where the ID parameter is passed to a database query without proper sanitization. Attackers can exploit the issue remotely without authentication and without user interaction. Public exploit details have been disclosed, increasing the likelihood of opportunistic scanning and exploitation against exposed deployments. The weakness is classified under CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component.
Critical Impact
Remote, unauthenticated SQL injection allows attackers to read, modify, or delete records in the application database, including order and administrative data.
Affected Products
- SourceCodester Simple Online Food Ordering System 1.0
- Vulnerable endpoint: /fos/admin/ajax.php?action=confirm_order
- Vulnerable parameter: ID
Discovery Timeline
- 2026-08-24 - CVE-2026-78247 published to NVD
- 2026-08-26 - Last updated in NVD database
Technical Details for CVE-2026-78247
Vulnerability Analysis
The vulnerability resides in the admin AJAX handler responsible for confirming customer orders. When a request reaches /fos/admin/ajax.php?action=confirm_order, the application takes the ID argument from the HTTP request and concatenates it directly into a SQL statement. Because there is no parameterized query or input validation, an attacker can inject arbitrary SQL syntax through the ID value.
Exploitation requires only network access to the application. The attack is remote, unauthenticated, and does not require user interaction. Public disclosure of exploitation details raises the risk of automated abuse, though the EPSS probability remains low at the time of publication.
Root Cause
The root cause is improper neutralization of user-controlled input before it is used in a SQL query [CWE-74]. The confirm_order action treats the ID parameter as trusted data and inserts it into the query string rather than binding it as a parameter. Prepared statements and strict input typing would prevent the injection.
Attack Vector
An attacker sends a crafted HTTP request to the confirm_order action with a malicious ID value containing SQL metacharacters. The injected payload can enumerate database schema, extract administrative credentials, tamper with order records, or perform destructive operations against the underlying MySQL database. Refer to the VulDB CVE Entry and GitHub Issue Discussion for technical details of the disclosed payload.
Detection Methods for CVE-2026-78247
Indicators of Compromise
- HTTP requests to /fos/admin/ajax.php?action=confirm_order containing SQL metacharacters such as single quotes, UNION SELECT, SLEEP(, or comment sequences (--, #) in the ID parameter.
- Web server access logs showing repeated confirm_order requests from a single source with varying ID values.
- Database error messages or unusually long response times originating from the ajax.php endpoint.
Detection Strategies
- Deploy web application firewall rules that inspect the ID query parameter for SQL injection signatures on the confirm_order action.
- Correlate anomalous admin AJAX traffic against baseline application behavior in a SIEM to surface injection attempts.
- Review MySQL slow query and general logs for malformed statements referencing the orders table.
Monitoring Recommendations
- Enable verbose logging on the PHP application and forward logs to a centralized analytics platform.
- Alert on non-numeric values submitted to parameters expected to contain integer identifiers.
- Monitor for outbound data transfers from the database server that deviate from normal application patterns.
How to Mitigate CVE-2026-78247
Immediate Actions Required
- Restrict network access to the /fos/admin/ directory to trusted administrator IP ranges until a patch is applied.
- Deploy a WAF rule blocking SQL metacharacters in the ID parameter of the confirm_order endpoint.
- Audit database and application logs for prior exploitation attempts against ajax.php?action=confirm_order.
Patch Information
No official vendor patch has been published for SourceCodester Simple Online Food Ordering System 1.0 at the time of this writing. Operators should monitor the SourceCodester Security Resource and the VulDB Vulnerability Details page for update notices. Where source code access is available, replace concatenated SQL with prepared statements using mysqli or PDO bound parameters, and cast the ID value to an integer before use.
Workarounds
- Enforce server-side input validation that rejects any non-integer ID value before the query executes.
- Place the admin interface behind a VPN or reverse proxy with authentication and IP allow-listing.
- Apply least-privilege permissions to the database account used by the application to limit the impact of successful injection.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
