CVE-2025-49467: JEvents for Joomla SQLi Vulnerability

CVE-2025-49467 Overview

A SQL injection vulnerability has been identified in the JEvents component for Joomla CMS, affecting versions prior to 3.6.88 and 3.6.82.1. This critical vulnerability allows unauthenticated attackers to exploit publicly accessible actions used to list events by date ranges. The extension fails to properly sanitize user-supplied input, enabling attackers to inject malicious SQL queries through date range parameters.

Critical Impact

Unauthenticated attackers can exploit this SQL injection vulnerability to extract sensitive data from the database, modify or delete records, and potentially gain full administrative access to the Joomla installation.

Affected Products

• JEvents component for Joomla versions prior to 3.6.88
• JEvents component for Joomla versions prior to 3.6.82.1
• Joomla websites using vulnerable JEvents installations

Discovery Timeline

• 2025-06-12 - CVE-2025-49467 published to NVD
• 2025-06-16 - Last updated in NVD database

Technical Details for CVE-2025-49467

Vulnerability Analysis

This vulnerability is classified as CWE-89: Improper Neutralization of Special Elements used in an SQL Command (SQL Injection). The JEvents component exposes publicly accessible actions that allow users to query and list events based on date ranges. The vulnerability exists because these date range parameters are not properly sanitized before being incorporated into SQL queries executed against the backend database.

The network-accessible attack vector combined with no authentication requirements makes this vulnerability particularly dangerous. An attacker can craft malicious HTTP requests containing SQL injection payloads within the date range parameters, allowing them to manipulate the underlying database queries. Successful exploitation could result in unauthorized access to sensitive information stored in the Joomla database, including user credentials, session tokens, and administrative data.

Root Cause

The root cause of this vulnerability lies in insufficient input validation and improper parameterization of SQL queries within the JEvents component. When processing date range parameters for event listing functionality, the component directly incorporates user-supplied values into SQL statements without adequate sanitization or the use of prepared statements. This allows specially crafted input containing SQL metacharacters to escape the intended query context and inject arbitrary SQL commands.

Attack Vector

The attack is network-based and requires no authentication or user interaction. Attackers can exploit this vulnerability by sending malicious HTTP requests to the publicly accessible JEvents date range listing functionality. The injected SQL commands execute with the same database privileges as the Joomla application, potentially allowing attackers to:

• Extract sensitive data from the database including user credentials and personal information
• Modify or delete database records
• Bypass authentication mechanisms
• In some configurations, achieve remote code execution through SQL features like INTO OUTFILE or LOAD_FILE()

The vulnerability can be exploited by injecting SQL payloads into date range parameters. For example, an attacker might manipulate event listing requests by appending UNION-based queries or time-based blind injection payloads to date parameters. The exact injection points involve the publicly accessible event listing actions that filter events by start and end dates. For detailed technical information, refer to the JEvents Official Website.

Detection Methods for CVE-2025-49467

Indicators of Compromise

• Unusual database query patterns or errors in Joomla log files
• Unexpected SQL syntax in web server access logs, particularly in requests to JEvents event listing URLs
• Database audit logs showing unauthorized SELECT, UNION, or data extraction attempts
• Anomalous access patterns to the JEvents date range filtering functionality

Detection Strategies

• Monitor web application firewall (WAF) logs for SQL injection patterns targeting JEvents endpoints
• Implement intrusion detection rules to identify common SQL injection signatures in HTTP parameters
• Review database query logs for anomalous queries originating from the Joomla application
• Deploy SentinelOne Singularity to detect post-exploitation activities such as credential theft or lateral movement

Monitoring Recommendations

• Enable detailed logging for the Joomla application and JEvents component
• Configure database query auditing to capture and alert on suspicious SQL patterns
• Set up real-time alerting for requests containing SQL metacharacters targeting event listing URLs
• Monitor for indicators of data exfiltration following potential exploitation

How to Mitigate CVE-2025-49467

Immediate Actions Required

• Update JEvents component to version 3.6.88 or later immediately
• For the 3.6.82.x branch, update to version 3.6.82.1 or later
• Review database logs for any indicators of prior exploitation
• Consider temporarily disabling the JEvents component if immediate patching is not possible
• Implement Web Application Firewall (WAF) rules to block SQL injection attempts

Patch Information

The JEvents development team has addressed this vulnerability in versions 3.6.88 and 3.6.82.1. Administrators should update their JEvents installations through the Joomla extension manager or by downloading the latest version from the JEvents Official Website. After updating, verify the installed version through the Joomla administrator panel to confirm the patch has been successfully applied.

Workarounds

• Deploy a Web Application Firewall (WAF) with SQL injection detection rules to filter malicious requests
• Restrict access to JEvents event listing functionality through Joomla ACL or server-level access controls
• Temporarily disable public access to date-based event filtering features
• Implement database user privilege restrictions to limit the impact of potential SQL injection

# Example Apache mod_security rule to block common SQL injection patterns
# Add to your .htaccess or Apache configuration
SecRule ARGS "@detectSQLi" \
    "id:1001,\
    phase:2,\
    deny,\
    status:403,\
    msg:'SQL Injection Attempt Blocked - JEvents Protection',\
    log,\
    auditlog"

# Alternatively, restrict access to JEvents event listing via .htaccess
<IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteCond %{QUERY_STRING} (UNION|SELECT|INSERT|UPDATE|DELETE|DROP) [NC]
    RewriteRule ^index.php.*jevents.* - [F,L]
</IfModule>