CVE-2022-50894: VIAVIWEB Wallpaper Admin SQLi Vulnerability

CVE-2022-50894 Overview

CVE-2022-50894 is an SQL Injection vulnerability affecting VIAVIWEB Wallpaper Admin 1.0. The vulnerability allows authenticated attackers to manipulate database queries by injecting SQL code through the img_id parameter. Attackers can send GET requests to the edit_gallery_image.php endpoint with malicious img_id values to extract database information, potentially compromising sensitive data stored within the application's database.

Critical Impact

Authenticated attackers can exploit this SQL injection flaw to extract sensitive database contents, modify data, or potentially escalate privileges within the affected VIAVIWEB Wallpaper Admin application.

Affected Products

• VIAVIWEB Wallpaper Admin 1.0

Discovery Timeline

• 2026-01-13 - CVE CVE-2022-50894 published to NVD
• 2026-01-13 - Last updated in NVD database

Technical Details for CVE-2022-50894

Vulnerability Analysis

This SQL Injection vulnerability (CWE-89) exists in the edit_gallery_image.php file of VIAVIWEB Wallpaper Admin 1.0. The application fails to properly sanitize user-supplied input in the img_id GET parameter before incorporating it into SQL queries. This lack of input validation allows attackers with authenticated access to inject arbitrary SQL statements that are then executed against the backend database.

The vulnerability is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command), which represents one of the most common and dangerous web application security flaws. The network-based attack vector with low attack complexity makes this vulnerability particularly concerning for organizations running this software.

Root Cause

The root cause of this vulnerability is improper input validation and sanitization. The edit_gallery_image.php script directly uses the img_id parameter value in SQL queries without proper parameterization or escaping. This allows specially crafted input containing SQL syntax to modify the intended query logic, enabling unauthorized database operations.

Attack Vector

The attack is conducted over the network and requires authentication to the Wallpaper Admin application. An attacker with valid credentials can craft malicious HTTP GET requests to the edit_gallery_image.php endpoint, injecting SQL code through the img_id parameter. This can be used to enumerate database structures, extract sensitive information, modify or delete data, and potentially gain further access to the underlying system depending on database permissions.

The vulnerability is documented in public exploit databases. For technical details on the exploitation technique, refer to the Exploit-DB #51033 entry and the VulnCheck Security Advisory.

Detection Methods for CVE-2022-50894

Indicators of Compromise

• Unusual GET requests to edit_gallery_image.php containing SQL keywords such as UNION, SELECT, OR, AND, --, or ' in the img_id parameter
• Database error messages appearing in application logs or HTTP responses
• Unexpected database queries or data access patterns in database audit logs
• Abnormal outbound traffic from the web server that may indicate data exfiltration

Detection Strategies

• Implement Web Application Firewall (WAF) rules to detect and block SQL injection patterns in HTTP parameters
• Enable detailed logging for the edit_gallery_image.php endpoint and monitor for anomalous img_id values
• Deploy intrusion detection systems (IDS) with signatures for SQL injection attack patterns
• Conduct regular security scans of the VIAVIWEB Wallpaper Admin installation using vulnerability scanners

Monitoring Recommendations

• Monitor web server access logs for requests containing SQL metacharacters in URL parameters
• Enable database query logging and alert on queries with unexpected syntax or unauthorized data access
• Set up alerts for multiple failed or unusual requests to the affected endpoint from single IP addresses
• Review authentication logs for suspicious login patterns that may precede exploitation attempts

How to Mitigate CVE-2022-50894

Immediate Actions Required

• Restrict access to the VIAVIWEB Wallpaper Admin panel to trusted IP addresses only
• Implement additional authentication controls such as multi-factor authentication
• Deploy a Web Application Firewall with SQL injection protection rules
• Review and audit database user permissions to follow the principle of least privilege
• Consider disabling or restricting access to edit_gallery_image.php until a patch is available

Patch Information

No official vendor patch information is currently available for this vulnerability. Organizations should monitor the ViaviWeb Company Site for security updates and patch releases. In the absence of an official fix, implementing the workarounds and mitigations described below is strongly recommended.

Workarounds

• Use a Web Application Firewall (WAF) to filter and block SQL injection attempts targeting the img_id parameter
• Implement IP-based access restrictions to limit administrative access to trusted networks
• Add server-side input validation to sanitize the img_id parameter, allowing only numeric values
• Consider migrating to an alternative wallpaper administration solution if vendor support is unavailable
• Isolate the application database with restricted permissions to minimize potential impact

# Example: Apache .htaccess to restrict admin access by IP
<Files "edit_gallery_image.php">
    Order Deny,Allow
    Deny from all
    Allow from 192.168.1.0/24
    Allow from 10.0.0.0/8
</Files>