CVE-2026-82610: Online Medicine Delivery System SQL Injection

CVE-2026-82610 Overview

CVE-2026-82610 is a SQL injection vulnerability in itsourcecode Online Medicine Delivery System 1.0. The flaw resides in the Employee::employeeAuthentication function within /rider/login.php, part of the Login Interface component. Attackers can manipulate the emp_email parameter to inject arbitrary SQL statements against the backend database. The weakness is classified under [CWE-74] (Improper Neutralization of Special Elements in Output Used by a Downstream Component). Exploitation requires no authentication and can be performed remotely over the network. Public exploit code has been released, increasing the likelihood of opportunistic attacks against exposed installations.

Critical Impact

Unauthenticated remote attackers can bypass the rider login and manipulate database contents through injected SQL in the emp_email field.

Affected Products

• itsourcecode Online Medicine Delivery System 1.0
• Component: Login Interface (/rider/login.php)
• Function: Employee::employeeAuthentication

Discovery Timeline

• 2026-08-31 - CVE-2026-82610 published to NVD
• 2026-08-31 - Last updated in NVD database

Technical Details for CVE-2026-82610

Vulnerability Analysis

The vulnerability exists in the rider login workflow of the Online Medicine Delivery System. When a rider submits credentials, the Employee::employeeAuthentication method processes the emp_email POST parameter and incorporates it into a SQL query without proper sanitization or parameterization. An attacker supplies crafted input containing SQL metacharacters, altering the query logic executed against the database.

The issue is exploitable pre-authentication because it occurs at the login endpoint itself. Attackers can use classic authentication bypass payloads that force the WHERE clause to evaluate as true, returning a valid rider row and establishing a session. The published bypass guide referenced by the vendor advisory demonstrates practical payloads against this endpoint.

Beyond authentication bypass, the same injection point can be leveraged for data extraction using UNION-based or boolean-based techniques, depending on backend query structure. This exposes customer records, employee credentials, and order data stored in the application database.

Root Cause

The root cause is direct concatenation of the untrusted emp_email request parameter into a SQL statement inside Employee::employeeAuthentication. The application does not use prepared statements or parameterized queries, and it does not enforce input validation on the email field before query construction.

Attack Vector

The attack vector is network-based and requires no privileges or user interaction. An attacker sends a crafted HTTP POST request to /rider/login.php with a malicious emp_email value. Refer to the GitHub SQLi Bypass Guide and VulDB CVE-2026-82610 Details for the published proof-of-concept payloads and exploitation walkthrough.

Detection Methods for CVE-2026-82610

Indicators of Compromise

• POST requests to /rider/login.php containing SQL metacharacters such as single quotes, --, OR 1=1, UNION SELECT, or comment sequences in the emp_email parameter.
• Unexpected successful rider logins from unusual source IPs or with malformed email values that do not match RFC 5322 syntax.
• Database error strings returned in HTTP responses from the rider login endpoint, indicating malformed injected queries.

Detection Strategies

• Deploy web application firewall signatures that inspect the emp_email field on /rider/login.php for SQL injection patterns.
• Enable verbose query logging on the MySQL/MariaDB backend and alert on authentication queries that contain tautologies or UNION clauses.
• Correlate failed and successful login events at the rider endpoint to detect brute-force injection attempts followed by session establishment.

Monitoring Recommendations

• Monitor web server access logs for spikes in POST traffic to /rider/login.php from single source IPs.
• Alert on outbound data flows from the application database process that deviate from baseline volume, indicating extraction activity.
• Track new rider sessions created without corresponding legitimate authentication events in application logs.

How to Mitigate CVE-2026-82610

Immediate Actions Required

• Restrict access to /rider/login.php using network ACLs or an authenticating reverse proxy until a fix is in place.
• Deploy WAF rules that block SQL injection payloads targeting the emp_email parameter.
• Audit the rider and employee tables for unauthorized accounts, modified records, or evidence of data exfiltration.

Patch Information

No official vendor patch has been published for itsourcecode Online Medicine Delivery System 1.0 at the time of NVD publication. Consult the VulDB CVE-2026-82610 Details entry and the vendor site at IT Source Code Resource for updated advisories.

Workarounds

• Modify Employee::employeeAuthentication in /rider/login.php to use prepared statements with bound parameters (for example, PDO or mysqli_prepare) instead of string concatenation.
• Apply strict server-side validation on the emp_email field, rejecting inputs that do not match a standard email regular expression.
• Enforce least-privilege database accounts so the application user cannot execute administrative statements or access unrelated schemas.
• Take the affected instance offline if it is internet-facing and no compensating controls are available.

# Configuration example: ModSecurity rule to block SQLi patterns on the rider login endpoint
SecRule REQUEST_URI "@streq /rider/login.php" \
    "id:1082610,phase:2,deny,status:403,log,msg:'CVE-2026-82610 SQLi attempt',\
    chain"
    SecRule ARGS:emp_email "@rx (?i)(\bunion\b.*\bselect\b|--|\bor\b\s+\d+=\d+|';)" \
        "t:none,t:urlDecodeUni"