CVE-2025-69948: Loan Management System SQLi Vulnerability

CVE-2025-69948 Overview

CVE-2025-69948 is a SQL Injection vulnerability in SourceCodester Modern Loan Management System 1.0. The flaw resides in the /admin/delete_group.php endpoint, where the id parameter is passed directly into a database query without sanitization. Unauthenticated remote attackers can inject arbitrary SQL statements by manipulating the id query string value. Successful exploitation allows attackers to read, modify, or delete database contents, and may enable authentication bypass or full application compromise. The issue is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

Critical Impact
Unauthenticated attackers can execute arbitrary SQL commands against the application database over the network with no user interaction.

Affected Products

SourceCodester Modern Loan Management System 1.0
Vulnerable endpoint: /admin/delete_group.php
Vulnerable parameter: id

Discovery Timeline

2026-07-31 - CVE-2025-69948 published to NVD
2026-08-03 - Last updated in NVD database

Technical Details for CVE-2025-69948

Vulnerability Analysis

The vulnerability exists in the administrative group deletion handler at /admin/delete_group.php. The script accepts an id value via HTTP GET and concatenates it directly into a SQL DELETE or SELECT statement. Because the input is not parameterized or escaped, an attacker can break out of the intended SQL context. This enables classic in-band and blind SQL injection techniques, including UNION-based extraction and boolean or time-based inference. The Modern Loan Management System exposes sensitive financial records, borrower personal data, and administrator credentials, making the database a valuable target.

Root Cause

The root cause is missing input validation and the absence of prepared statements in the PHP handler. The id parameter flows from $_GET into a dynamically constructed SQL query. No type casting to integer, no whitelist validation, and no use of PDO or mysqli parameter binding is present. This is a textbook CWE-89 pattern documented in the TaintRadar advisory.

Attack Vector

An attacker sends a crafted HTTP GET request to /admin/delete_group.php?id=<payload>. Payloads such as 1 OR 1=1, 1 UNION SELECT user,password FROM admin, or time-based variants like 1 AND SLEEP(5) can be used to enumerate schema, extract records, or delete data. While the endpoint sits under /admin/, no authentication check is enforced on the injection point according to the referenced advisory. Refer to the TaintRadar repository for the published proof-of-concept details.

Detection Methods for CVE-2025-69948

Indicators of Compromise

Web server access logs containing requests to /admin/delete_group.php with SQL keywords such as UNION, SELECT, SLEEP, or -- in the id parameter.
Unusual outbound queries or spikes in database error messages tied to the delete_group.php handler.
Unexpected deletions or modifications in the groups or related loan management tables.

Detection Strategies

Deploy signatures on web application firewalls to flag SQL metacharacters and tautologies in the id query string.
Enable MySQL general query logging temporarily and search for malformed statements originating from the loan management application user.
Correlate HTTP 500 responses from /admin/delete_group.php with subsequent authentication or privilege changes.

Monitoring Recommendations

Alert on any access to /admin/delete_group.php from IP addresses outside the administrative allow-list.
Monitor database process lists for long-running queries consistent with time-based blind SQL injection.
Track file integrity of PHP source files in /admin/ to detect webshell drops that often follow SQL injection compromise.

How to Mitigate CVE-2025-69948

Immediate Actions Required

Restrict network access to the /admin/ directory using IP allow-listing or a VPN until a patched build is available.
Deploy a web application firewall rule that blocks non-numeric values for the id parameter on /admin/delete_group.php.
Rotate all database and administrator credentials if the application has been internet-exposed.

Patch Information

No official vendor patch has been published at the time of NVD entry. Administrators should monitor the SourceCodester project pages and the TaintRadar advisory for updates. Until a fix is released, apply the workarounds below and consider replacing the affected component with a maintained alternative.

Workarounds

Modify delete_group.php to cast $_GET['id'] to an integer with (int) before use, or refactor to use PDO prepared statements with bound parameters.
Enforce administrator authentication and CSRF tokens on all /admin/ handlers, including deletion actions.
Place the application behind a reverse proxy that enforces strict input validation and rate limiting on state-changing endpoints.

bash

# Example ModSecurity rule to block SQLi patterns on the vulnerable endpoint
SecRule REQUEST_URI "@beginsWith /admin/delete_group.php" \
    "chain,phase:2,deny,status:403,id:1006994801,msg:'CVE-2025-69948 SQLi attempt'"
    SecRule ARGS:id "!@rx ^[0-9]+$" "t:none"