CVE-2025-63532: Blood Bank Management System SQLi Flaw

CVE-2025-63532 Overview

CVE-2025-63532 is a SQL injection vulnerability in Shridharshukl Blood Bank Management System version 1.0. The flaw resides in the cancel.php component, where the application fails to sanitize user-supplied input before incorporating it into SQL queries. An attacker can manipulate the search field to inject arbitrary SQL code. Successful exploitation allows authentication bypass and unauthorized access to backend database contents. The weakness is classified under CWE-89, Improper Neutralization of Special Elements used in an SQL Command.

Critical Impact

Attackers with low-privilege network access can bypass authentication, extract sensitive donor and patient records, and modify or destroy data stored in the Blood Bank Management System database.

Affected Products

• Shridharshukl Blood Bank Management System 1.0
• cancel.php component with the vulnerable search parameter
• Deployments using the upstream code from the GitHub Project Repository

Discovery Timeline

• 2025-12-01 - CVE-2025-63532 published to the National Vulnerability Database
• 2025-12-04 - Last updated in NVD database

Technical Details for CVE-2025-63532

Vulnerability Analysis

The vulnerability stems from unsafe SQL query construction in cancel.php. The application concatenates the search parameter directly into a SQL statement without parameterization or input validation. An authenticated attacker with low privileges can submit crafted input over the network. The injected SQL is executed in the database context used by the web application.

The attack complexity is low and requires no user interaction. Confidentiality, integrity, and availability of the underlying database are all impacted. The vulnerability carries an EPSS probability of 0.082%, indicating no observed exploitation activity at the time of publication.

Root Cause

The root cause is the absence of prepared statements and input sanitization in the cancel.php handler. User-supplied data flows directly from the HTTP request into a dynamic SQL query string. This pattern allows query structure manipulation through standard SQL injection payloads such as boolean logic, UNION clauses, or comment terminators. PHP database APIs such as mysqli_prepare or PDO parameter binding were not used in the affected code path.

Attack Vector

An attacker sends an HTTP request to the cancel.php endpoint and supplies a malicious payload in the search field. By embedding SQL syntax that alters the WHERE clause logic, the attacker forces the query to return rows regardless of credential checks. This authentication bypass grants access to administrative functions and stored records, including donor identity, blood type, and contact information.

No public proof-of-concept exploit code is referenced in the NVD entry. Technical details are documented in the GitHub CVE Details writeup.

Detection Methods for CVE-2025-63532

Indicators of Compromise

• HTTP POST or GET requests to cancel.php containing SQL metacharacters such as ', --, UNION SELECT, or OR 1=1 in the search parameter
• Unexpected database error messages or 500 responses originating from cancel.php
• New or unfamiliar administrative sessions established without preceding successful login events
• Spikes in outbound data transfer from the web application database server

Detection Strategies

• Deploy a web application firewall ruleset that inspects request parameters for SQL injection signatures targeting cancel.php
• Enable database query logging and alert on queries containing tautologies or stacked statements originating from the application user
• Correlate web access logs with database audit logs to identify anomalous query patterns following requests to the vulnerable endpoint

Monitoring Recommendations

• Monitor authentication events for sessions that lack a corresponding successful login record
• Track read volume on tables holding donor, recipient, and credential data for unexpected bulk SELECT operations
• Review web server access logs daily for repeated requests to cancel.php from a single source IP address

How to Mitigate CVE-2025-63532

Immediate Actions Required

• Restrict network exposure of the Blood Bank Management System to trusted internal networks only until a patch is applied
• Apply input filtering at a reverse proxy or WAF layer to block SQL metacharacters in the search parameter
• Rotate database credentials and review database accounts for unauthorized changes
• Audit web and database logs for prior exploitation attempts against cancel.php

Patch Information

No vendor advisory or official patch is listed in the NVD record at the time of publication. Operators should monitor the GitHub Project Repository for updates. Until an upstream fix is released, replace dynamic SQL in cancel.php with parameterized queries using mysqli_prepare or PDO prepared statements, and validate the search input against an allowlist of expected characters.

Workarounds

• Disable or remove the cancel.php endpoint if it is not required for operations
• Place the application behind authentication-enforcing reverse proxy controls that limit access to vetted users
• Configure the database account used by the application with read-only or least-privilege permissions on non-essential tables

# Example WAF rule (ModSecurity) blocking SQLi patterns on cancel.php
SecRule REQUEST_URI "@contains /cancel.php" \
    "chain,phase:2,deny,status:403,id:1063532,msg:'Block SQLi on cancel.php'"
    SecRule ARGS:search "@rx (?i)(union(\s)+select|or\s+1=1|--|\bsleep\(|;)" "t:none"