CVE-2024-6278: School Management System SQLi Vulnerability

CVE-2024-6278 Overview

CVE-2024-6278 is a SQL injection vulnerability in Lahirudanushka School Management System versions 1.0.0 and 1.0.1. The flaw resides in the subject.php file within the Subject Page component. Attackers can manipulate the update argument to inject arbitrary SQL statements against the backend database. The vulnerability is exploitable remotely over the network and requires high privileges but no user interaction. Public disclosure of the exploit details has occurred, increasing the risk of opportunistic exploitation against exposed installations. The issue is tracked under VulDB identifier VDB-269491 and categorized under CWE-89.

Critical Impact
Authenticated remote attackers can inject SQL statements through the update parameter in subject.php, potentially exposing or modifying student, staff, and administrative records.

Affected Products

Lahirudanushka School Management System 1.0.0
Lahirudanushka School Management System 1.0.1
Subject Page component (subject.php)

Discovery Timeline

2024-06-24 - CVE-2024-6278 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-6278

Vulnerability Analysis

The vulnerability affects the Subject Page functionality of the School Management System. Specifically, subject.php processes an update argument without proper input sanitization or parameterized queries. When the application constructs its SQL statement, attacker-controlled input from the update parameter is concatenated directly into the query string. This enables SQL injection [CWE-89], allowing an attacker to alter query logic, extract data, or modify records.

The attack vector is network-based with low complexity. Exploitation requires an authenticated session with elevated privileges, which limits mass exploitation but does not prevent abuse by malicious insiders or attackers who have already compromised administrator credentials. The EPSS probability is 0.585%, indicating a lower likelihood of active exploitation attempts compared to internet-facing CMS SQLi flaws.

Root Cause

The root cause is improper neutralization of special elements used in SQL commands. The subject.php handler does not employ prepared statements or bind parameters when incorporating the update value into a database query. Any character that terminates the intended query context, such as a single quote or a semicolon, allows the attacker to append additional SQL clauses.

Attack Vector

An authenticated attacker sends a crafted HTTP request to the Subject Page endpoint, supplying a malicious payload in the update parameter. The payload can include UNION-based selects to exfiltrate table contents, boolean-based conditions for blind extraction, or stacked queries to modify records. Because the exploit has been publicly disclosed, working payloads and reproduction steps are available to attackers.

No verified public exploit code is available in a vetted repository. Refer to the VulDB entry #269491 and the Notion SQL Injection Analysis for technical reproduction details.

Detection Methods for CVE-2024-6278

Indicators of Compromise

Unexpected HTTP POST or GET requests to subject.php containing SQL metacharacters such as ', --, UNION, or SLEEP( in the update parameter.
Database error messages returned in application responses referencing MySQL syntax errors near the update value.
Anomalous SELECT, UPDATE, or DROP queries originating from the School Management System web user account in database audit logs.
New or modified rows in subject or related tables outside of routine administrative activity.

Detection Strategies

Deploy web application firewall (WAF) signatures that flag SQL injection patterns targeting the update parameter on subject.php.
Enable verbose database query logging and alert on queries containing tautologies such as OR 1=1 or time-delay functions.
Correlate authenticated session activity with anomalous query volume against the school management database.

Monitoring Recommendations

Monitor authentication logs for repeated failed logins followed by successful high-privilege access, which may indicate credential compromise preceding exploitation.
Alert on outbound data transfers from the database server that exceed baseline volumes.
Track modifications to subject.php and neighboring scripts to detect webshell placement following successful injection.

How to Mitigate CVE-2024-6278

Immediate Actions Required

Restrict network access to the School Management System web interface to trusted administrative networks only.
Rotate all administrator credentials and enforce strong, unique passwords with multi-factor authentication where supported.
Review database audit logs for signs of exploitation activity dating back to the initial disclosure on 2024-06-24.
Take the application offline if it is exposed to untrusted networks until a patched version is available.

Patch Information

At the time of publication, no vendor advisory or official patch has been published by lahirudanushka for versions 1.0.0 or 1.0.1. Organizations should monitor the project's public repository for updates and apply fixes as soon as they are released. Refer to VulDB CTI #269491 for tracking updates.

Workarounds

Apply a WAF rule that blocks requests to subject.php where the update parameter contains SQL metacharacters or reserved keywords.
Implement server-side input validation in subject.php to accept only expected value formats such as numeric identifiers.
Refactor the affected query to use parameterized statements with PDO or mysqli prepared statements before reinstating the endpoint.
Enforce least-privilege database accounts so the application user cannot execute DDL statements or read unrelated tables.

bash

# Example ModSecurity rule to block SQLi patterns targeting subject.php
SecRule REQUEST_URI "@contains /subject.php" \
    "chain,phase:2,deny,status:403,id:1002678,\
    msg:'Potential SQLi against subject.php update parameter'"
    SecRule ARGS:update "@rx (?i)(union(\s+all)?\s+select|sleep\s*\(|--|;|/\*)"