CVE-2026-76762 Overview
CVE-2026-76762 is a SQL injection vulnerability in code-projects Assessment Management 1.0. The flaw exists in the /welcome.php script, where the userid parameter is passed to a database query without proper sanitization. Attackers can manipulate the parameter to inject arbitrary SQL statements. The vulnerability is exploitable remotely without authentication or user interaction. Public exploit details have been disclosed, increasing the risk of opportunistic attacks against exposed instances. The issue is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component).
Critical Impact
Unauthenticated remote attackers can inject SQL commands through the userid parameter in /welcome.php, potentially disclosing, modifying, or destroying database contents.
Affected Products
- code-projects Assessment Management 1.0
- /welcome.php endpoint
- Deployments exposing the application to untrusted networks
Discovery Timeline
- 2026-08-20 - CVE-2026-76762 published to NVD
- 2026-08-20 - Last updated in NVD database
Technical Details for CVE-2026-76762
Vulnerability Analysis
The vulnerability resides in the /welcome.php script of code-projects Assessment Management 1.0. The userid request parameter is incorporated into a SQL query without input validation or parameterized statements. An attacker submits crafted values that alter the query's logic and structure. Exploitation requires no credentials and no user interaction, and the attack can be launched over the network.
Because the exploit has been published, defenders should assume automated scanners will probe exposed installations. Successful exploitation can expose stored assessment records, user account data, and other sensitive information held in the backing database.
Root Cause
The root cause is improper neutralization of user-supplied input before it is used in a SQL statement. The application concatenates the userid parameter directly into the query string. This design allows metacharacters such as single quotes, comment sequences, and UNION clauses to modify the intended query.
Attack Vector
An attacker sends an HTTP request to /welcome.php with a manipulated userid value. The injected payload can extract data via UNION-based queries, enumerate schema information through error responses, or leverage boolean and time-based techniques when responses are blind. No authentication is required, so the endpoint can be reached by any network-adjacent client.
No verified proof-of-concept code is included here. For technical exploitation details, refer to the GitHub Issue Discussion and VulDB Vulnerability Details.
Detection Methods for CVE-2026-76762
Indicators of Compromise
- HTTP requests to /welcome.php containing SQL metacharacters in the userid parameter, such as single quotes, --, UNION SELECT, or SLEEP(.
- Unexpected database error messages returned by the application to external clients.
- Anomalous outbound data volume from the application server following requests to /welcome.php.
Detection Strategies
- Deploy web application firewall rules that inspect the userid parameter for SQL injection signatures.
- Enable database query logging and alert on queries referencing information_schema or containing stacked statements originating from the Assessment Management application.
- Correlate web access logs with authentication and database logs to identify unauthenticated probing of /welcome.php.
Monitoring Recommendations
- Monitor for repeated requests to /welcome.php from a single source with varying userid payloads.
- Alert on HTTP 500 responses from /welcome.php, which often accompany injection attempts that trigger SQL syntax errors.
- Track user-agent strings associated with automated scanners such as sqlmap.
How to Mitigate CVE-2026-76762
Immediate Actions Required
- Restrict network access to the Assessment Management application through firewall rules or reverse proxy allowlists until a fix is applied.
- Deploy a web application firewall with SQL injection signatures in front of /welcome.php.
- Review database and web server logs for evidence of exploitation attempts dating back to the application's deployment.
Patch Information
No vendor patch has been referenced in the published advisory data. Consult the VulDB CVE-2026-76762 entry and the Code Projects Overview for updates from the maintainer.
Workarounds
- Modify /welcome.php to use parameterized queries or prepared statements for all references to the userid value.
- Apply server-side input validation that restricts userid to expected character sets, such as integers only.
- Enforce least-privilege database credentials so the web application account cannot read or modify tables outside its required scope.
- Take the affected application offline if it is not business-critical until a vendor-supplied fix is available.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
