CVE-2024-3522 Overview
CVE-2024-3522 is a SQL injection vulnerability in Campcodes Online Event Management System 1.0. The flaw exists in the /api/process.php endpoint, where the userId parameter is not sanitized before being used in a database query [CWE-89]. Remote attackers with low-privilege access can inject arbitrary SQL statements over the network without user interaction. The exploit has been publicly disclosed, increasing the risk of opportunistic attacks against exposed installations. The vulnerability is tracked as VulDB entry 259893.
Critical Impact
Remote authenticated attackers can extract, modify, or delete database contents and potentially achieve full compromise of the application backend through crafted userId values sent to /api/process.php.
Affected Products
- Campcodes Online Event Management System 1.0
- Component: /api/process.php
- Vulnerable parameter: userId
Discovery Timeline
- 2024-04-09 - CVE-2024-3522 published to the National Vulnerability Database
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2024-3522
Vulnerability Analysis
The vulnerability resides in the /api/process.php script of Campcodes Online Event Management System 1.0. The application accepts a userId argument and concatenates it directly into an SQL query without parameterization or input validation. An attacker who supplies malicious SQL syntax in this argument can alter query logic to read arbitrary tables, bypass authentication checks, or write to the database. Because the endpoint is reachable over the network and requires only low privileges, exploitation is straightforward once an account or accessible session is available. The public disclosure of exploit details lowers the barrier to attack. EPSS data indicates a probability of 0.675% (percentile 49.42) as of 2026-08-24.
Root Cause
The root cause is improper neutralization of special elements used in an SQL command [CWE-89]. The userId parameter is embedded directly into a query string rather than passed through a prepared statement or parameterized query. No server-side type checking, allow-listing, or escaping of the input is performed prior to database execution.
Attack Vector
Exploitation is performed remotely by sending an HTTP request to /api/process.php with a crafted userId parameter. A typical payload replaces the expected numeric identifier with SQL syntax such as boolean-based, union-based, or time-based injection strings. Successful injection grants the attacker the same database privileges held by the web application account, which typically includes read and write access to all application tables. See the GitHub Vulnerability Report and VulDB CVE Analysis #259893 for technical details.
Detection Methods for CVE-2024-3522
Indicators of Compromise
- HTTP requests to /api/process.php containing SQL metacharacters such as ', --, UNION, SELECT, SLEEP(, or OR 1=1 in the userId parameter.
- Unexpected database errors or long response times originating from /api/process.php.
- Anomalous read volume from application database accounts or queries referencing tables unrelated to event workflows.
Detection Strategies
- Deploy web application firewall (WAF) rules that inspect the userId parameter for SQL injection signatures.
- Enable verbose logging on the database server and correlate query anomalies against web access logs for /api/process.php.
- Review application logs for authentication failures or session anomalies immediately following requests to the vulnerable endpoint.
Monitoring Recommendations
- Alert on any request to /api/process.php where userId is non-numeric or exceeds expected length.
- Monitor for outbound data transfers from the database host that deviate from baseline volume.
- Track failed and successful logins to the application immediately after suspicious API requests to identify potential credential exfiltration.
How to Mitigate CVE-2024-3522
Immediate Actions Required
- Restrict network access to the application to trusted users and IP ranges until a fix is available.
- Place a WAF in blocking mode in front of /api/process.php with rules targeting SQL injection payloads.
- Rotate database and application credentials if the endpoint has been exposed to untrusted networks.
- Audit database logs for signs of prior exploitation, including unusual SELECT, INSERT, or UNION activity tied to the userId parameter.
Patch Information
No vendor advisory or official patch has been published for Campcodes Online Event Management System 1.0 at the time of writing. Organizations running this product should consider decommissioning the affected version or applying compensating controls. Refer to VulDB Entry #259893 and VulDB Submission #312504 for tracking updates.
Workarounds
- Modify /api/process.php to use parameterized queries or prepared statements when handling userId.
- Enforce strict server-side input validation to ensure userId is numeric and within an expected range.
- Apply least-privilege principles to the database account used by the application, removing unnecessary write and administrative rights.
- Disable or remove the /api/process.php endpoint if it is not required for production use.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
