CVE-2026-76764: Employee Management System SQLi Flaw

CVE-2026-76764 Overview

CVE-2026-76764 is a SQL injection vulnerability in code-projects Employee Management System 1.0. The flaw resides in the /process/aprocess.php file within the Admin Login Endpoint component. Attackers can manipulate the mailuid argument to inject arbitrary SQL statements into backend database queries. Remote exploitation is possible without authentication or user interaction. The exploit has been published publicly, increasing the likelihood of opportunistic scanning and abuse against exposed installations. The vulnerability is categorized 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 admin login endpoint, potentially exposing employee records, credentials, and other database contents.

Affected Products

code-projects Employee Management System 1.0
Component: Admin Login Endpoint (/process/aprocess.php)
Vulnerable parameter: mailuid

Discovery Timeline

2026-08-20 - CVE-2026-76764 published to NVD
2026-08-20 - Last updated in NVD database

Technical Details for CVE-2026-76764

Vulnerability Analysis

The vulnerability exists in the admin login processing script located at /process/aprocess.php. The application accepts the mailuid parameter from client-supplied input and incorporates it into a SQL query without proper sanitization or parameterization. This allows an attacker to break out of the intended query context and append arbitrary SQL syntax.

Because the vulnerable endpoint is the admin login handler, attackers can weaponize the injection to bypass authentication checks, extract credentials, or enumerate database schema. The attack requires no prior authentication and no user interaction. According to EPSS data published on 2026-08-20, the vulnerability carries a probability of 0.328% with a percentile of 25.861.

Root Cause

The root cause is improper neutralization of special characters in the mailuid parameter before it reaches the SQL query construction logic. The application concatenates untrusted input directly into a query string rather than using prepared statements or parameterized queries. This is a classic instance of [CWE-74] input neutralization failure applied to a SQL context.

Attack Vector

An attacker sends a crafted HTTP request to /process/aprocess.php supplying a malicious payload in the mailuid field. Because the endpoint is network-reachable and requires no credentials, exploitation can be automated across internet-exposed installations. The vulnerability description in the enriched CVE data confirms the exploit has been published, so working payloads are already circulating publicly. Detailed reproduction steps are available in the GitHub CVE Issue Discussion and the VulDB CVE-2026-76764 Listing.

Detection Methods for CVE-2026-76764

Indicators of Compromise

HTTP POST or GET requests to /process/aprocess.php containing SQL metacharacters (single quotes, --, UNION, OR 1=1) in the mailuid parameter.
Web server access logs showing repeated authentication attempts against the admin login endpoint from a single source.
Database error messages or unexpected long response times originating from aprocess.php.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect the mailuid parameter for SQL injection signatures.
Enable database query logging and alert on anomalous queries originating from the Employee Management System service account.
Correlate failed admin login attempts with subsequent successful authentications from the same IP to identify potential bypass activity.

Monitoring Recommendations

Monitor outbound database traffic from the web application server for unusual query volume or schema enumeration patterns.
Track access to sensitive tables (users, credentials, employee records) and alert on access outside of expected application workflows.
Review web server logs daily for requests targeting /process/aprocess.php from unexpected geographies or IP ranges.

How to Mitigate CVE-2026-76764

Immediate Actions Required

Restrict network access to the Employee Management System admin interface to trusted management networks or VPN clients.
Audit the aprocess.php file and refactor SQL query construction to use prepared statements with bound parameters.
Rotate any admin credentials and database service account passwords that may have been exposed prior to remediation.
Review database and web server logs for indicators of prior exploitation attempts.

Patch Information

No official vendor patch has been referenced in the enriched CVE data at the time of publication. Because code-projects Employee Management System is a small open-source project, administrators should track updates through the Code Projects Resource Hub and the GitHub CVE Issue Discussion for community-provided fixes.

Workarounds

Place the application behind a WAF configured to block SQL injection payloads targeting login parameters.
Implement input validation at the application layer to reject non-email-formatted values for the mailuid field.
Apply least-privilege database permissions so the web application account cannot read sensitive tables outside its intended scope.
Consider taking the application offline until source code can be remediated if it processes sensitive employee data.

bash

# Example WAF rule (ModSecurity) to block SQLi patterns in mailuid
SecRule ARGS:mailuid "@rx (?i)(union.*select|or\s+1=1|--|;|/\*)" \
    "id:1076764,phase:2,deny,status:403,\
    msg:'CVE-2026-76764 SQLi attempt on mailuid parameter'"