CVE-2026-30813: Pandora FMS SQL Injection Vulnerability

CVE-2026-30813 Overview

CVE-2026-30813 is a SQL Injection vulnerability affecting Pandora FMS, a popular open-source monitoring solution. The vulnerability exists in the module search functionality and allows authenticated attackers to inject malicious SQL commands through improperly sanitized user input. This flaw, classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), can lead to unauthorized data access, data manipulation, and potential compromise of the underlying database infrastructure.

Critical Impact

Authenticated attackers can exploit this SQL Injection vulnerability to extract sensitive monitoring data, modify database contents, or potentially escalate privileges within the Pandora FMS environment.

Affected Products

• Pandora FMS versions 777 through 800

Discovery Timeline

• April 13, 2026 - CVE-2026-30813 published to NVD
• April 13, 2026 - Last updated in NVD database

Technical Details for CVE-2026-30813

Vulnerability Analysis

This SQL Injection vulnerability resides in the module search component of Pandora FMS. The application fails to properly sanitize user-supplied input before incorporating it into SQL queries, allowing attackers with valid authentication credentials to inject arbitrary SQL statements. The network-accessible attack vector combined with low attack complexity makes this vulnerability relatively straightforward to exploit once an attacker has authenticated access to the system.

The vulnerability can be exploited to bypass application-level access controls, extract sensitive monitoring data including credentials and configuration information, modify or delete database records, and potentially achieve further system compromise depending on the database configuration and privileges.

Root Cause

The root cause of this vulnerability is the improper neutralization of special elements in user-supplied input before it is used to construct SQL queries. The module search functionality accepts user input that is directly concatenated into database queries without adequate parameterization or input validation. This violates secure coding practices that mandate the use of prepared statements or parameterized queries to prevent SQL injection attacks.

Attack Vector

The attack is network-based and requires the attacker to have low-privilege authenticated access to the Pandora FMS web interface. Once authenticated, an attacker can navigate to the module search functionality and craft malicious input containing SQL metacharacters and statements. These injected SQL commands are then executed by the database server with the privileges of the application's database user.

The vulnerability allows for high confidentiality and integrity impact on the vulnerable system, with additional limited impact on surrounding scope. Exploitation can lead to extraction of sensitive information stored in the database, modification of monitoring configurations and data, and potential lateral movement within the network monitoring infrastructure.

Detection Methods for CVE-2026-30813

Indicators of Compromise

• Unusual or malformed SQL syntax appearing in web application logs related to module search queries
• Database error messages exposed in application responses indicating SQL syntax errors
• Unexpected database queries or commands logged at the database server level
• Evidence of data exfiltration or unauthorized data access from monitoring tables

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block common SQL injection patterns in HTTP requests
• Enable detailed database query logging and monitor for suspicious query patterns, UNION-based attacks, or time-based blind injection attempts
• Configure application logging to capture all search queries with associated user sessions for forensic analysis
• Deploy database activity monitoring solutions to detect anomalous query behavior

Monitoring Recommendations

• Monitor web server access logs for unusual patterns in module search endpoint requests
• Establish baseline metrics for database query performance and alert on deviations that may indicate time-based SQL injection attempts
• Implement real-time alerting on database errors that may indicate exploitation attempts
• Review authentication logs for compromised accounts that could be used to launch attacks

How to Mitigate CVE-2026-30813

Immediate Actions Required

• Upgrade Pandora FMS to a version higher than 800 that contains the security fix for this vulnerability
• Restrict network access to the Pandora FMS web interface to trusted IP addresses only
• Review and audit user accounts with access to the module search functionality
• Implement additional WAF rules to provide defense-in-depth protection against SQL injection attacks

Patch Information

Pandora FMS users should consult the official Pandora FMS Security Advisory page for detailed patch information and upgrade instructions. It is strongly recommended to upgrade to a version beyond 800 to address this vulnerability.

Workarounds

• Deploy a Web Application Firewall (WAF) configured with SQL injection detection rules to filter malicious requests
• Implement network segmentation to limit access to the Pandora FMS web interface from untrusted networks
• Apply the principle of least privilege to database user accounts used by the application
• Consider temporarily disabling or restricting access to the module search functionality until patching is complete

# Example: Restrict access to Pandora FMS web interface using iptables
# Allow access only from trusted management network
iptables -A INPUT -p tcp --dport 443 -s 10.0.0.0/24 -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -j DROP

# Example: Apache configuration to restrict access
# Add to VirtualHost or Directory configuration
# <Location "/pandora_console">
#     Require ip 10.0.0.0/24
# </Location>