CVE-2025-69172: Resurs Path Traversal Vulnerability

CVE-2025-69172 Overview

CVE-2025-69172 is an unauthenticated Local File Inclusion (LFI) vulnerability affecting the Resurs WordPress theme in versions 1.3 and earlier. The flaw is classified under CWE-98, which covers improper control of filename for include/require statements in PHP programs. Attackers can exploit the issue remotely over the network without authentication or user interaction. Successful exploitation enables an attacker to include arbitrary local files within the WordPress installation, exposing sensitive configuration data such as wp-config.php and potentially leading to remote code execution when combined with file upload or log poisoning techniques.

Critical Impact
Unauthenticated remote attackers can read arbitrary files on the server hosting a vulnerable Resurs theme installation, exposing credentials, secrets, and application source code.

Affected Products

Resurs WordPress theme, all versions up to and including 1.3
WordPress sites with the Resurs theme installed and activated
Shared hosting environments running vulnerable Resurs deployments

Discovery Timeline

2026-06-17 - CVE-2025-69172 published to the National Vulnerability Database
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-69172

Vulnerability Analysis

The vulnerability resides in the Resurs WordPress theme, where a PHP include or require statement accepts user-controlled input without proper sanitization or allowlist validation. This is a textbook PHP File Inclusion weakness (CWE-98). An unauthenticated attacker can manipulate a request parameter consumed by the theme to traverse directories and load arbitrary local files from the underlying filesystem.

Because WordPress themes execute within the web application context, included files run with the privileges of the web server user. An attacker who controls the path passed to an inclusion function can read sensitive files such as wp-config.php, .env, or operating system files like /etc/passwd. When combined with secondary techniques such as poisoning Apache access logs, /proc/self/environ, or uploaded media files, the flaw can be escalated to remote code execution. The Patchstack advisory confirms the issue affects Resurs versions up to and including 1.3.

Root Cause

The root cause is the absence of input validation on a parameter used as an argument to a PHP file inclusion construct. The theme code does not enforce an allowlist of permitted filenames, does not strip directory traversal sequences such as ../, and does not append a hardcoded extension or directory prefix. Any attacker who can reach the vulnerable endpoint over HTTP can supply an arbitrary path.

Attack Vector

The attack vector is network-based and requires no authentication or user interaction. An attacker issues an HTTP request to the vulnerable Resurs theme endpoint, supplying a manipulated parameter value that resolves to a sensitive file path. The vulnerability mechanism is described in the Patchstack WordPress Vulnerability Report. No verified public proof-of-concept code is currently available, so technical details are provided in prose only.

Detection Methods for CVE-2025-69172

Indicators of Compromise

HTTP requests to the Resurs theme containing directory traversal sequences such as ../, ..%2f, or URL-encoded null bytes
Web server log entries showing parameter values referencing wp-config.php, /etc/passwd, /proc/self/environ, or PHP wrapper schemes such as php://filter
Unexpected outbound traffic from the web server immediately following suspicious inclusion requests
Unusual reads of WordPress configuration files by the web server process

Detection Strategies

Inspect access logs for requests targeting Resurs theme files combined with parameter values containing path traversal patterns or PHP stream wrappers
Deploy a Web Application Firewall (WAF) rule that blocks LFI signatures and PHP wrapper schemes against WordPress endpoints
Use file integrity monitoring on wp-config.php and theme directories to identify tampering attempts

Monitoring Recommendations

Enable verbose access logging on the WordPress front end and forward logs to a centralized SIEM for correlation
Alert on repeated 200-status responses to requests containing traversal payloads, which indicate successful file disclosure
Monitor the WordPress site for new administrative users, plugin installations, or theme modifications following any suspected LFI activity

How to Mitigate CVE-2025-69172

Immediate Actions Required

Disable or remove the Resurs theme from any WordPress installation running version 1.3 or earlier until a patched release is verified
Rotate any credentials, API keys, or secrets stored in wp-config.php if exploitation is suspected
Restrict access to the WordPress site via IP allowlisting or HTTP authentication while remediation is in progress

Patch Information

No vendor patch reference is provided in the available CVE data. Administrators should consult the Patchstack WordPress Vulnerability Report for the latest remediation guidance and to confirm when a fixed version becomes available.

Workarounds

Deploy WAF rules that block requests containing ../, php://, file://, and data:// patterns directed at theme endpoints
Configure PHP open_basedir restrictions to confine file inclusion operations to the WordPress installation directory
Set allow_url_include = Off and allow_url_fopen = Off in php.ini to reduce the impact of inclusion flaws
Replace the Resurs theme with a maintained alternative if no patched version is published

bash

# Example php.ini hardening to reduce LFI impact
allow_url_include = Off
allow_url_fopen = Off
open_basedir = "/var/www/html:/tmp"
disable_functions = "exec,passthru,shell_exec,system,proc_open,popen"