CVE-2025-53453

8.2 HIGH

📋 TL;DR

This vulnerability allows attackers to include local files on the server through improper filename control in PHP include/require statements. It affects WordPress sites using the Hygia theme version 1.16 and earlier. Attackers can potentially read sensitive files or execute arbitrary code.

💻 Affected Systems

Products:
  • WordPress Hygia Theme
Versions: <= 1.16
Operating Systems: All
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Hygia theme active. PHP environment must allow local file inclusion.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full server compromise through arbitrary code execution leading to data theft, ransomware deployment, or complete system takeover.

🟠

Likely Case

Sensitive file disclosure (configuration files, database credentials, user data) and limited code execution within web server context.

🟢

If Mitigated

Limited information disclosure if file permissions are properly configured and web server runs with minimal privileges.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Simple HTTP requests can trigger the vulnerability. Public exploit details available on security research sites.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: >1.16

Vendor Advisory: https://patchstack.com/database/Wordpress/Theme/hygia/vulnerability/wordpress-hygia-theme-1-16-local-file-inclusion-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Update Hygia theme to latest version via WordPress admin panel. 2. Verify theme version is >1.16. 3. Clear WordPress cache if applicable.

🔧 Temporary Workarounds

Disable vulnerable theme

all

Switch to default WordPress theme until patch can be applied

wp theme activate twentytwentyfour

Restrict PHP file functions

linux

Disable dangerous PHP functions via php.ini

disable_functions = include,require,include_once,require_once

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block LFI patterns
  • Restrict web server permissions to minimal required directories

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for Hygia theme version <=1.16

Check Version:

wp theme list --field=name,status,version | grep hygia

Verify Fix Applied:

Confirm theme version >1.16 and test LFI payloads return errors instead of file contents

📡 Detection & Monitoring

Log Indicators:

  • Unusual include/require statements in PHP error logs
  • HTTP requests with file path traversal patterns

Network Indicators:

  • HTTP requests containing '..', '/etc/', or other directory traversal patterns

SIEM Query:

source="web_logs" AND (uri="*..*" OR uri="*/etc/*" OR uri="*include*" OR uri="*require*")

🔗 References

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