CVE-2026-78056: Student Management System SQL Injection

CVE-2026-78056 Overview

CVE-2026-78056 is a SQL injection vulnerability in the sambitraj Student-Management-System project, affecting builds up to commit 56ba287f2e9031523ccb4244cb6e3fe530e4e5d5. The flaw resides in the Dashboard component, where the roll_no and teacher_name parameters are not properly sanitized before use in database queries. An authenticated remote attacker can manipulate these parameters to inject arbitrary SQL statements. The project uses a rolling release model, so specific fixed versions are not published. A public exploit is available, and the maintainer has not yet responded to the issue report.

Critical Impact

Authenticated attackers can inject SQL through the Dashboard roll_no and teacher_name parameters, enabling unauthorized read and write access to the underlying database.

Affected Products

• sambitraj Student-Management-System (rolling release)
• Builds up to commit 56ba287f2e9031523ccb4244cb6e3fe530e4e5d5
• Dashboard component processing roll_no and teacher_name inputs

Discovery Timeline

• 2026-08-23 - CVE-2026-78056 published to NVD
• 2026-08-27 - Last updated in NVD database

Technical Details for CVE-2026-78056

Vulnerability Analysis

The vulnerability is classified under [CWE-74] Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). The Dashboard functionality accepts user-controlled values in the roll_no and teacher_name request parameters and concatenates them into SQL queries without parameterization. This allows an attacker to break out of the intended query context and append or modify SQL clauses.

Exploitation requires low-privilege authenticated access and no user interaction. The attack is executable over the network against any reachable instance of the application. Successful injection may expose student and teacher records, allow unauthorized modification of academic data, or corrupt database state depending on the privileges of the application's database user.

Root Cause

The root cause is the direct inclusion of untrusted request parameters into SQL statements without using prepared statements or bound parameters. The Dashboard handler treats roll_no and teacher_name as trusted string values and passes them into query construction. No input validation, allow-listing, or escaping is applied before the query reaches the database driver.

Attack Vector

An authenticated attacker submits crafted values in the roll_no or teacher_name fields through the Dashboard interface or its underlying HTTP endpoints. Payloads use standard SQL injection primitives such as boolean-based, union-based, or time-based techniques to enumerate schema information and exfiltrate data. Because the exploit is public, opportunistic scanning against exposed instances should be expected.

No verified proof-of-concept code is republished here. Refer to the VulDB CVE-2026-78056 entry and the GitHub Issue Tracker for technical detail.

Detection Methods for CVE-2026-78056

Indicators of Compromise

• HTTP requests to Dashboard endpoints containing SQL metacharacters such as ', ", --, ;, UNION, or SLEEP( in the roll_no or teacher_name parameters.
• Database error messages or 500 responses correlated with malformed values in these parameters.
• Unexpected outbound queries or bulk record reads originating from the application's database account.

Detection Strategies

• Deploy web application firewall (WAF) signatures for SQL injection payloads targeting the roll_no and teacher_name parameters.
• Enable database query logging and alert on syntactically anomalous queries generated by the Student-Management-System application user.
• Review authentication logs to correlate low-privilege sessions with abnormal Dashboard request volume.

Monitoring Recommendations

• Forward web server, application, and database logs to a centralized analytics platform for correlation and long-term retention.
• Baseline normal query patterns for the Dashboard component and alert on deviations such as UNION SELECT or information_schema access.
• Monitor for exfiltration indicators, including large response payloads returned from Dashboard endpoints.

How to Mitigate CVE-2026-78056

Immediate Actions Required

• Restrict network access to the Student-Management-System Dashboard to trusted networks or place it behind an authenticated reverse proxy.
• Audit application code paths handling roll_no and teacher_name and replace string concatenation with parameterized queries or prepared statements.
• Rotate database credentials and reduce the application database user to the minimum privileges required.

Patch Information

The project maintainer has not published a fix or responded to the GitHub Issue Tracker report. Because the GitHub Project Repository uses a rolling release model, no fixed version identifier is available. Organizations running the application should apply mitigations locally or discontinue use until an upstream fix is released.

Workarounds

• Apply input validation that restricts roll_no to numeric characters and teacher_name to an alphabetic allow-list at the reverse proxy or WAF layer.
• Disable or remove the affected Dashboard endpoints if they are not operationally required.
• Enable database-level query allow-listing or use an ORM layer that enforces parameter binding in front of the application.

# Example WAF rule concept (ModSecurity) - review before deploying
SecRule ARGS:roll_no "!@rx ^[0-9]{1,10}$" \
    "id:1026078056,phase:2,deny,status:400,msg:'CVE-2026-78056 roll_no validation'"
SecRule ARGS:teacher_name "!@rx ^[A-Za-z .'-]{1,64}$" \
    "id:1026078057,phase:2,deny,status:400,msg:'CVE-2026-78056 teacher_name validation'"