CVE-2025-69410: Belletrist Theme File Inclusion Vulnerability

CVE-2025-69410 Overview

CVE-2025-69410 is a Local File Inclusion (LFI) vulnerability affecting the Belletrist WordPress theme developed by Edge-Themes. The vulnerability stems from improper control of filename for include/require statements in PHP, classified under CWE-98 (Improper Control of Filename for Include/Require Statement in PHP Program). This flaw allows attackers to include arbitrary local files from the server, potentially leading to sensitive information disclosure, configuration file exposure, or code execution if combined with other attack techniques.

Critical Impact

Unauthenticated attackers can exploit this vulnerability remotely to read sensitive files from the WordPress server, potentially exposing database credentials, configuration files, and other critical system information.

Affected Products

• Edge-Themes Belletrist WordPress Theme versions through 1.2
• WordPress installations using the vulnerable Belletrist theme
• Web servers hosting affected WordPress deployments

Discovery Timeline

• 2026-02-20 - CVE-2025-69410 published to NVD
• 2026-02-24 - Last updated in NVD database

Technical Details for CVE-2025-69410

Vulnerability Analysis

This vulnerability exists due to insufficient input validation in the Belletrist WordPress theme's PHP code when handling file inclusion operations. The theme fails to properly sanitize user-controlled input before passing it to PHP's include() or require() functions, allowing attackers to manipulate file paths and include arbitrary local files from the server's filesystem.

The attack can be executed remotely without authentication. While the attack complexity is considered high, successful exploitation requires no user interaction and can result in significant impact to confidentiality, integrity, and availability of the affected system. Attackers could potentially read sensitive configuration files such as wp-config.php, which contains database credentials, authentication keys, and other security-critical information.

Root Cause

The root cause of this vulnerability lies in the improper handling of user-supplied input within PHP include/require statements. The Belletrist theme does not adequately validate or sanitize file path parameters before including them, violating secure coding practices. This allows path traversal sequences (such as ../) to escape the intended directory structure and access files elsewhere on the filesystem.

Attack Vector

The vulnerability is exploitable via network-based attacks targeting the WordPress installation. An attacker can craft malicious HTTP requests containing specially crafted file path parameters that traverse directory structures to access sensitive local files. Common exploitation techniques include:

The attack leverages path traversal sequences within HTTP request parameters to escape the web application's document root and access system files. Attackers typically target configuration files, log files, and other sensitive data that could facilitate further attacks or credential theft. For detailed technical information about this vulnerability, refer to the Patchstack security advisory.

Detection Methods for CVE-2025-69410

Indicators of Compromise

• HTTP requests containing path traversal sequences (../, ..%2f, ..%5c) targeting Belletrist theme endpoints
• Unusual file access patterns in web server logs referencing theme-specific PHP files
• Requests attempting to access sensitive files such as /etc/passwd, wp-config.php, or .htaccess
• Error logs showing failed file inclusion attempts with unexpected file paths

Detection Strategies

• Monitor web application firewall (WAF) logs for path traversal attack patterns targeting WordPress theme directories
• Implement intrusion detection rules to identify LFI attack signatures in HTTP traffic
• Review WordPress access logs for suspicious requests containing null bytes, encoded traversal sequences, or wrapper protocols
• Deploy file integrity monitoring on critical configuration files to detect unauthorized access attempts

Monitoring Recommendations

• Configure real-time alerting for web server logs showing requests with path traversal indicators
• Implement endpoint detection and response (EDR) monitoring for unusual file access patterns on WordPress servers
• Enable verbose logging on PHP applications to capture file inclusion operation details
• Deploy network-based intrusion detection systems with WordPress-specific attack signatures

How to Mitigate CVE-2025-69410

Immediate Actions Required

• Update the Belletrist WordPress theme to a patched version when available from Edge-Themes
• Consider temporarily disabling or replacing the Belletrist theme if a patch is not yet available
• Implement web application firewall rules to block path traversal attack patterns
• Review server logs for evidence of exploitation attempts and investigate any suspicious activity

Patch Information

Organizations using the Belletrist WordPress theme should monitor for security updates from Edge-Themes. The vulnerability affects all versions through 1.2. Administrators should check the Patchstack vulnerability database for the latest patch availability and update recommendations.

Workarounds

• Deploy a web application firewall (WAF) with rules blocking path traversal sequences
• Restrict PHP's open_basedir directive to limit file access to the WordPress installation directory
• Implement strict input validation at the web server level using ModSecurity or similar solutions
• Consider switching to an alternative WordPress theme until an official patch is released

# ModSecurity rule example to block path traversal attempts
SecRule REQUEST_URI|ARGS|ARGS_NAMES "@contains ../" \
    "id:100001,\
    phase:2,\
    block,\
    msg:'Path Traversal Attack Blocked',\
    log,\
    severity:'CRITICAL'"

# PHP open_basedir restriction in php.ini
# Limit PHP file access to WordPress directory only
# open_basedir = /var/www/html/wordpress/:/tmp/