CVE-2026-93979: Internship Management System SQL Injection

CVE-2026-93979 is a SQL injection vulnerability in code-projects Internship Management System 1.0 affecting the employer login functionality. Attackers can exploit this remotely to manipulate databases. This article covers technical details, affected versions, impact assessment, and mitigation strategies.

CVE-2026-93979 Overview

CVE-2026-93979 is a SQL injection vulnerability in code-projects Internship Management System 1.0. The flaw resides in the /employer/login.php endpoint, where the Password parameter is passed to a backend SQL query without proper sanitization. Attackers can manipulate the parameter to alter query logic and interact with the underlying database. The vulnerability is remotely exploitable and requires no authentication or user interaction. Public exploit details have been released, increasing the likelihood of opportunistic scanning and abuse against exposed installations.

Critical Impact
Unauthenticated remote attackers can inject SQL statements through the employer login page, potentially bypassing authentication and accessing stored credentials or sensitive data.

Affected Products

code-projects Internship Management System 1.0
Vulnerable component: /employer/login.php
Vulnerable parameter: Password

Discovery Timeline

2026-09-20 - CVE-2026-93979 published to NVD
2026-09-22 - Last updated in NVD database

Technical Details for CVE-2026-93979

Vulnerability Analysis

The vulnerability is classified under [CWE-74] Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection), specifically manifesting as SQL injection. The /employer/login.php script accepts a Password argument from the client and incorporates it into a SQL query without parameterization or input escaping.

Because the affected endpoint is a login page, the vulnerability is reachable pre-authentication. An attacker with network access to the web application can supply crafted values that break out of the intended string context and append malicious SQL clauses. The impact profile reflects limited confidentiality, integrity, and availability impact to the database backing the application.

Root Cause

The root cause is direct concatenation of user-controlled input into a SQL statement in login.php. The application does not use prepared statements or parameterized queries, and it does not validate or escape the Password field before submitting it to the database engine.

Attack Vector

Exploitation occurs over the network by issuing an HTTP POST request to /employer/login.php with a manipulated Password field. Typical payloads use boolean-based or union-based SQL injection techniques to bypass authentication, enumerate database schema, or extract stored records. No credentials or prior session state are required. Public technical documentation is available in the GitHub CVE writeup and the VulDB entry for CVE-2026-93979.

No verified proof-of-concept code is reproduced here. See the referenced advisories for technical details.

Detection Methods for CVE-2026-93979

Indicators of Compromise

HTTP POST requests to /employer/login.php containing SQL metacharacters such as single quotes, --, #, UNION, OR 1=1, or SLEEP( in the Password field.
Database error messages or unusually long response times originating from the employer login handler.
Repeated failed login attempts from a single source IP followed by a successful authentication without a valid credential history.

Detection Strategies

Deploy web application firewall (WAF) rules that inspect POST bodies to /employer/login.php for SQL injection signatures targeting the Password parameter.
Enable database query logging and alert on syntactically anomalous queries originating from the Internship Management System application user.
Correlate web server access logs with authentication events to identify login successes that lack corresponding valid credential validation.

Monitoring Recommendations

Forward web server, WAF, and database logs into a centralized analytics platform for correlation and retention.
Alert on spikes in 500-series errors or query execution time anomalies on the login endpoint.
Track outbound traffic from the web server for signs of data staging or exfiltration following suspicious login activity.

How to Mitigate CVE-2026-93979

Immediate Actions Required

Restrict network exposure of the Internship Management System, placing it behind a VPN or IP allowlist until a vendor fix is applied.
Deploy WAF signatures that block SQL injection payloads targeting /employer/login.php and the Password parameter.
Audit the application database for unauthorized accounts, modified records, or exfiltration indicators.

Patch Information

No vendor patch has been referenced in the published advisories at the time of writing. Organizations relying on code-projects Internship Management System 1.0 should monitor the code-projects vendor site and the VulDB advisory for remediation updates.

Workarounds

Modify login.php to use parameterized queries or prepared statements for all user-supplied inputs, including the Password field.
Apply strict server-side input validation that rejects SQL metacharacters in authentication parameters.
Enforce least privilege on the database account used by the web application, removing DDL and administrative permissions.
Consider decommissioning the application if it is not actively maintained and cannot be hardened.

bash

# Configuration example: sample ModSecurity rule to block SQLi on the login endpoint
SecRule REQUEST_URI "@streq /employer/login.php" \
  "id:1009301,phase:2,deny,status:403,\
   msg:'Possible SQLi on Internship Management System login',\
   chain"
  SecRule ARGS:Password "@detectSQLi" "t:none"