CVE-2025-26898: Shinetheme Traveler SQLi Vulnerability

CVE-2025-26898 Overview

CVE-2025-26898 is a critical SQL Injection vulnerability affecting the Shinetheme Traveler WordPress theme. This vulnerability allows attackers to manipulate SQL queries through improper neutralization of special elements, potentially leading to unauthorized access to sensitive database information. The flaw is classified under CWE-89 (Improper Neutralization of Special Elements used in an SQL Command).

Critical Impact

Unauthenticated attackers can exploit this SQL Injection vulnerability over the network without user interaction, potentially extracting sensitive data from WordPress databases including user credentials, personal information, and confidential business data.

Affected Products

• Shinetheme Traveler WordPress Theme versions through 3.1.8
• WordPress installations running vulnerable Traveler theme versions
• Websites using Traveler theme for travel booking functionality

Discovery Timeline

• 2025-03-27 - CVE-2025-26898 published to NVD
• 2025-03-28 - Last updated in NVD database

Technical Details for CVE-2025-26898

Vulnerability Analysis

This SQL Injection vulnerability exists within the Shinetheme Traveler WordPress theme, a popular travel booking solution. The vulnerability stems from inadequate input validation and sanitization of user-supplied data before it is incorporated into SQL queries.

Attackers exploiting this vulnerability can manipulate database queries to extract confidential information stored in the WordPress database. The network-accessible attack vector combined with no authentication requirements makes this vulnerability particularly dangerous for public-facing WordPress sites.

The scope is changed, meaning successful exploitation can affect resources beyond the vulnerable component itself. While the primary impact is on data confidentiality (complete compromise), there is also limited impact on system availability.

Root Cause

The root cause of CVE-2025-26898 is improper neutralization of special SQL characters in user-controlled input. The Traveler theme fails to properly sanitize, escape, or parameterize user input before constructing SQL queries. This allows malicious actors to inject arbitrary SQL commands that are then executed by the database engine with the same privileges as the application.

WordPress themes that directly construct SQL queries without using WordPress's built-in database abstraction layer ($wpdb->prepare()) or equivalent parameterized query methods are particularly susceptible to this class of vulnerability.

Attack Vector

The attack can be executed remotely over the network without requiring any authentication or user interaction. An attacker can craft malicious HTTP requests containing SQL injection payloads targeting vulnerable input fields or parameters within the Traveler theme.

The exploitation mechanism involves injecting SQL syntax into parameters that are processed by vulnerable functions within the theme. These injected commands are executed against the WordPress database, allowing attackers to perform operations such as:

• Extracting user credentials and password hashes
• Accessing customer booking data and personal information
• Enumerating database structure and contents
• Potentially escalating to further attacks depending on database permissions

For technical details on exploitation patterns, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-26898

Indicators of Compromise

• Unusual database query patterns in web server or database logs
• SQL error messages appearing in response bodies or log files
• Unexpected data extraction activities from the WordPress database
• Anomalous HTTP requests with SQL syntax in parameters targeting Traveler theme endpoints
• Unexplained database performance degradation from malicious query execution

Detection Strategies

• Deploy Web Application Firewall (WAF) rules to detect SQL injection patterns in HTTP requests
• Monitor database query logs for suspicious query structures containing UNION, SELECT, or comment sequences
• Implement intrusion detection signatures for known SQL injection attack patterns
• Review web server access logs for requests containing encoded SQL payloads or suspicious parameter values
• Use SentinelOne Singularity Platform for real-time threat detection and behavioral analysis of WordPress applications

Monitoring Recommendations

• Enable comprehensive logging for all WordPress database queries
• Configure alerting for database errors that may indicate injection attempts
• Monitor for unusual data access patterns or bulk data extraction from the WordPress database
• Implement file integrity monitoring on Traveler theme files to detect unauthorized modifications
• Establish baseline metrics for normal database query patterns to identify anomalies

How to Mitigate CVE-2025-26898

Immediate Actions Required

• Update Shinetheme Traveler theme to the latest patched version immediately
• Audit WordPress database for signs of unauthorized access or data extraction
• Review web server logs for evidence of exploitation attempts
• Consider temporarily disabling the Traveler theme if an update is not immediately available
• Implement WAF rules to block common SQL injection attack patterns

Patch Information

Site administrators should immediately check for and apply the latest security update for the Shinetheme Traveler theme. The vulnerability affects all versions through 3.1.8, so upgrading beyond this version is essential.

For detailed vulnerability information and patch status, consult the Patchstack Vulnerability Report.

Contact Shinetheme directly for official patch availability if updates are not visible in the WordPress theme repository.

Workarounds

• Deploy a Web Application Firewall with SQL injection protection rules as a temporary mitigation
• Restrict access to WordPress admin and vulnerable theme functionality to trusted IP addresses
• Implement additional input validation at the web server level using ModSecurity or similar solutions
• Consider using WordPress security plugins that provide virtual patching capabilities
• Limit database user privileges to reduce the impact of successful exploitation

# Example ModSecurity rule to block common SQL injection patterns
SecRule ARGS "@detectSQLi" \
    "id:1000,\
    phase:2,\
    block,\
    msg:'SQL Injection Attack Detected',\
    log,\
    severity:'CRITICAL'"

# Restrict wp-admin access by IP (Apache example)
# Add to .htaccess in wp-admin directory
<IfModule mod_authz_core.c>
    Require ip 192.168.1.0/24
</IfModule>