CVE-2026-7731 Overview
CVE-2026-7731 is a SQL injection vulnerability in code-projects BloodBank Managing System 1.0. The flaw resides in the get_state.php script, where the G_STATE_ID parameter is passed directly into a database query without proper sanitization. Attackers can manipulate this argument to alter SQL statement logic and interact with backend data. The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component). Remote exploitation is possible over the network, and the exploit details have been disclosed publicly. The vulnerability requires low privileges and no user interaction to trigger.
Critical Impact
Authenticated remote attackers can inject arbitrary SQL through the G_STATE_ID parameter in get_state.php, potentially exposing or modifying records stored in the BloodBank database.
Affected Products
- code-projects BloodBank Managing System 1.0
- Vulnerable script: get_state.php
- Vulnerable parameter: G_STATE_ID
Discovery Timeline
- 2026-05-04 - CVE-2026-7731 published to NVD
- 2026-05-04 - Last updated in NVD database
Technical Details for CVE-2026-7731
Vulnerability Analysis
The vulnerability is a classic SQL injection issue in the BloodBank Managing System 1.0 web application. The get_state.php endpoint accepts a G_STATE_ID request argument that is concatenated into a SQL query without parameterization or input validation. Because the application does not enforce prepared statements or escape user-supplied data, attacker-controlled input is interpreted as part of the SQL command.
According to the EPSS data published on 2026-05-07, the probability of exploitation in the wild remains low. However, public disclosure of the exploit on GitHub CVE SQL3 Documentation and VulDB Vulnerability #360906 lowers the barrier for opportunistic attackers.
Root Cause
The root cause is improper neutralization of special elements ([CWE-74]) in the G_STATE_ID parameter handler. The application passes the raw HTTP argument directly into a dynamic SQL string used to query state records, allowing SQL metacharacters such as single quotes, UNION, and comment sequences to alter query semantics.
Attack Vector
A remote authenticated user with low privileges can craft an HTTP request to get_state.php containing malicious SQL fragments in the G_STATE_ID parameter. The injected payload executes against the backend database, enabling extraction of records, boolean-based or time-based blind enumeration, and potentially modification of stored data depending on database account permissions.
The vulnerability mechanism is described in the publicly available proof-of-concept hosted at GitHub CVE SQL3 Documentation. Refer to that resource for the exact request structure used to trigger the injection.
Detection Methods for CVE-2026-7731
Indicators of Compromise
- HTTP requests to get_state.php containing SQL metacharacters such as ', --, UNION SELECT, or SLEEP( in the G_STATE_ID parameter.
- Web server access logs showing unusually long or encoded values for the G_STATE_ID query string parameter.
- Database error messages or anomalous query latency originating from the BloodBank application backend.
Detection Strategies
- Deploy web application firewall (WAF) signatures that flag SQL injection patterns targeting G_STATE_ID and other parameters in get_state.php.
- Enable database query logging and alert on syntactically anomalous queries originating from the BloodBank application service account.
- Perform static analysis of the BloodBank PHP source to confirm whether G_STATE_ID flows into a dynamic SQL string without parameterization.
Monitoring Recommendations
- Monitor outbound traffic from the database host for unexpected data egress that may indicate successful exfiltration.
- Track failed and successful login activity to the BloodBank application, as the flaw requires low-privileged authenticated access.
- Review HTTP 500 responses from get_state.php as a signal of injection attempts that produced database errors.
How to Mitigate CVE-2026-7731
Immediate Actions Required
- Restrict network exposure of the BloodBank Managing System to trusted users until a fix is applied.
- Audit application logs for prior requests to get_state.php containing SQL metacharacters in G_STATE_ID.
- Rotate database credentials used by the BloodBank application if logs indicate suspicious queries.
Patch Information
No official vendor patch has been published in the referenced advisories. Organizations should monitor code-projects.org and VulDB Vulnerability #360906 for updates. Until a vendor fix is available, modify the application source to use parameterized queries (PDO prepared statements or mysqli bound parameters) for all uses of G_STATE_ID.
Workarounds
- Replace dynamic SQL in get_state.php with prepared statements that bind G_STATE_ID as an integer parameter.
- Add server-side input validation to reject G_STATE_ID values that are not strictly numeric before reaching database code.
- Deploy a WAF rule blocking SQL injection payloads targeting the get_state.php endpoint as a compensating control.
- Run the database account used by the application with least-privilege permissions to limit impact of successful injection.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
