CVE-2025-68066: Soledad Theme LFI Vulnerability

CVE-2025-68066 Overview

CVE-2025-68066 is a PHP Local File Inclusion (LFI) vulnerability in the PenciDesign Soledad WordPress theme. The flaw stems from improper control of filenames used in PHP include/require statements, classified under [CWE-98]. Authenticated attackers with low privileges can manipulate file path parameters to include arbitrary local PHP files on the server. The vulnerability affects all Soledad theme versions up to and including 8.7.0. Successful exploitation can lead to source code disclosure, sensitive configuration file exposure, and arbitrary PHP code execution if attacker-controlled content is reachable through includable paths.

Critical Impact
Authenticated attackers can include arbitrary PHP files on the WordPress server, exposing credentials in wp-config.php and potentially achieving remote code execution.

Affected Products

PenciDesign Soledad WordPress Theme versions through 8.7.0
WordPress sites using the Soledad multipurpose blog theme
Any deployment where the vulnerable theme is active and accessible

Discovery Timeline

2025-12-16 - CVE-2025-68066 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-68066

Vulnerability Analysis

The Soledad theme processes user-supplied input to dynamically determine which PHP file to include at runtime. The theme code passes attacker-influenced values into include or require statements without enforcing a strict allowlist or canonical path validation. This pattern matches [CWE-98], Improper Control of Filename for Include/Require Statement in PHP Program.

While the underlying weakness class also enables Remote File Inclusion, the advisory describes the impact in this specific case as Local File Inclusion. An authenticated user with low privileges can supply a manipulated path parameter to read arbitrary files interpreted by the PHP engine. According to Patchstack, the issue affects Soledad versions up to and including 8.7.0.

Root Cause

The root cause is missing or insufficient sanitization of a filename parameter consumed by a PHP file inclusion call inside the theme. The code accepts user input and resolves it to a filesystem path without normalizing traversal sequences such as ../ or restricting inclusion to a vetted set of template files. PHP then loads and executes whatever file the resolved path points to.

Attack Vector

The attack is delivered over the network against the WordPress site. The attacker authenticates with a low-privilege account and sends a crafted HTTP request that targets the vulnerable theme endpoint. By controlling the include path, the attacker can load files such as wp-config.php, log files, or uploaded content. If user-controlled content reaches the PHP interpreter through this path, the attacker gains code execution under the web server account. Refer to the Patchstack Soledad Theme Vulnerability advisory for technical details.

Detection Methods for CVE-2025-68066

Indicators of Compromise

HTTP requests to Soledad theme endpoints containing path traversal sequences such as ../, ..%2f, or URL-encoded null bytes
Web server access logs showing parameter values referencing sensitive files like wp-config.php, /etc/passwd, or PHP session files
Unexpected PHP errors referencing include() or require() with attacker-supplied paths in error logs
Outbound connections or new administrative users created shortly after suspicious requests to theme files

Detection Strategies

Inspect WordPress access logs for requests targeting Soledad theme PHP files with suspicious query parameters
Deploy web application firewall rules that flag LFI patterns against /wp-content/themes/soledad/ paths
Correlate authenticated session activity with file inclusion attempts to identify abuse of low-privilege accounts

Monitoring Recommendations

Enable PHP log_errors and review entries for failed include attempts referencing user-controlled input
Monitor integrity of wp-config.php and other sensitive files for read access by the web server process
Alert on new or modified PHP files inside wp-content/uploads/ that could be staged for inclusion

How to Mitigate CVE-2025-68066

Immediate Actions Required

Update the Soledad theme to a version later than 8.7.0 as soon as the vendor publishes a fixed release
Audit WordPress user accounts and remove unused low-privilege accounts that could be abused for authenticated exploitation
Rotate WordPress database credentials, secret keys, and salts in wp-config.php if exploitation is suspected

Patch Information

Review the Patchstack Soledad Theme Vulnerability advisory for vendor patch availability. Upgrade Soledad beyond version 8.7.0 once the vendor releases a remediated build.

Workarounds

Restrict access to WordPress administrative and contributor endpoints using IP allowlists or VPN-only access
Configure a WAF rule to block requests containing path traversal sequences targeting theme files
Use Patchstack or an equivalent virtual patching service to apply mitigation rules until the official fix is installed
Disable the Soledad theme and switch to an alternative theme if patching cannot be completed promptly

bash

# Example WAF rule to block LFI patterns against the Soledad theme path
SecRule REQUEST_URI "@contains /wp-content/themes/soledad/" \
    "chain,deny,status:403,id:1006806601,msg:'Block Soledad LFI attempt'"
    SecRule ARGS "@rx (\.\./|\.\.%2f|wp-config\.php|/etc/passwd)" "t:lowercase,t:urlDecodeUni"