CVE-2025-32926: Grand Restaurant Path Traversal Flaw

CVE-2025-32926 Overview

CVE-2025-32926 is a critical path traversal vulnerability affecting the Grand Restaurant WordPress theme developed by ThemeGoods. This vulnerability allows unauthenticated attackers to traverse directory paths and potentially access files outside the intended web directory structure. The flaw stems from improper limitation of pathname handling, which can be chained with PHP object injection for maximum impact.

Critical Impact

This path traversal vulnerability requires no authentication and can be exploited remotely over the network, potentially leading to unauthorized file access, sensitive data disclosure, and PHP object injection attacks that could result in full site compromise.

Affected Products

• ThemeGoods Grand Restaurant WordPress theme versions up to and including 7.0
• WordPress installations running the vulnerable Grand Restaurant theme
• All sites using Grand Restaurant theme without available security patches

Discovery Timeline

• 2025-05-19 - CVE-2025-32926 published to NVD
• 2025-06-09 - Last updated in NVD database

Technical Details for CVE-2025-32926

Vulnerability Analysis

This vulnerability falls under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory), commonly known as Path Traversal or Directory Traversal. The Grand Restaurant WordPress theme fails to properly sanitize user-supplied input when constructing file paths, allowing attackers to use special character sequences such as ../ to escape the intended directory and access arbitrary files on the filesystem.

The vulnerability can be exploited without any authentication, making it particularly dangerous for public-facing WordPress sites. An attacker can leverage this flaw remotely over the network with low complexity, requiring no user interaction. When combined with PHP object injection techniques, this vulnerability chain can potentially lead to remote code execution, complete site compromise, and unauthorized access to sensitive configuration files including wp-config.php.

Root Cause

The root cause of this vulnerability is inadequate input validation and sanitization of file path parameters within the Grand Restaurant theme. The theme does not properly validate or normalize file paths before processing them, allowing directory traversal sequences to be passed through without filtering. This lack of path canonicalization enables attackers to break out of the expected directory structure and access files anywhere on the filesystem that the web server process has permissions to read.

Attack Vector

The attack vector is network-based, allowing remote exploitation without authentication. An attacker can craft malicious HTTP requests containing path traversal sequences (such as ../) to navigate out of the web root directory. The attack flow typically involves:

1. Identifying a vulnerable endpoint in the Grand Restaurant theme that accepts file path input
2. Crafting a request with directory traversal sequences to access files outside the intended directory
3. Potentially chaining this with PHP object injection by deserializing malicious PHP objects found in traversed files
4. Achieving unauthorized data access or, in severe cases, remote code execution through the object injection chain

For detailed technical analysis and exploitation mechanics, refer to the Patchstack Vulnerability Report.

Detection Methods for CVE-2025-32926

Indicators of Compromise

• HTTP requests containing path traversal sequences such as ../, ..%2f, %2e%2e/, or similar URL-encoded variants targeting theme endpoints
• Access logs showing requests attempting to read sensitive files like wp-config.php, /etc/passwd, or other system files
• Unusual file access patterns originating from the Grand Restaurant theme directory
• Evidence of PHP object injection payloads in request parameters or POST data

Detection Strategies

• Implement web application firewall (WAF) rules to detect and block path traversal patterns in requests to WordPress theme endpoints
• Enable detailed access logging and monitor for requests containing ../ sequences or encoded variants targeting the grandrestaurant theme directory
• Deploy file integrity monitoring to detect unauthorized reads of sensitive configuration files
• Use SentinelOne Singularity to detect anomalous file system access patterns and potential exploitation attempts

Monitoring Recommendations

• Configure alerts for HTTP requests containing directory traversal sequences targeting WordPress theme directories
• Monitor web server error logs for failed file access attempts that may indicate reconnaissance activity
• Implement rate limiting on theme-related endpoints to slow down automated exploitation attempts
• Review access logs regularly for patterns consistent with path traversal exploitation

How to Mitigate CVE-2025-32926

Immediate Actions Required

• Identify all WordPress installations running the Grand Restaurant theme version 7.0 or earlier
• Disable or remove the Grand Restaurant theme until a patched version is available from ThemeGoods
• Implement WAF rules to block path traversal attempts targeting your WordPress installations
• Review web server logs for evidence of exploitation attempts and investigate any suspicious activity

Patch Information

As of the last NVD update on 2025-06-09, organizations should monitor for updates from ThemeGoods for a patched version of the Grand Restaurant theme. Check the Patchstack Vulnerability Report for the latest remediation guidance and patch availability.

Workarounds

• Implement web application firewall rules to filter and block requests containing path traversal sequences (../, URL-encoded variants)
• Restrict file system permissions to limit the web server's ability to read files outside the WordPress directory
• Consider using an alternative theme until an official patch is released
• Apply principle of least privilege to WordPress file and directory permissions

# Example WAF rule to block path traversal attempts (ModSecurity)
SecRule REQUEST_URI "@contains ../" "id:1001,phase:1,deny,status:403,msg:'Path Traversal Attempt Detected'"
SecRule REQUEST_URI "@rx (?i)(\.\./|\.\.%2f|%2e%2e/|%2e%2e%2f)" "id:1002,phase:1,deny,status:403,msg:'Encoded Path Traversal Attempt'"