CVE ID: CVE-2025-69356
Product: CodexThemes – TheGem (Theme Elements for Elementor)
Component: Elementor integration / dynamic template handling
Vulnerability Type: Local File Inclusion (LFI)
CWE: CWE-98 – Improper Control of Filename for Include/Require Statement
Severity: Critical
Impact: Arbitrary local file read → credential disclosure → Remote Code Execution (via chaining)
Attack Vector: Remote, unauthenticated (in typical default deployments)
User Interaction: None
Privileges Required: None
Exploit Maturity: Functional exploitation confirmed in real-world testing scenarios
Exploit Availability: No official exploit release, but exploitation is straightforward
Patch Status: Vendor fix available

Executive Summary

CVE-2025-69356 is a critical Local File Inclusion vulnerability in the TheGem Elementor plugin. Due to insufficient validation of file paths passed into PHP include/require logic, an attacker can force the application to load arbitrary files from the server’s filesystem.

While LFI is often dismissed as “just file reading,” in WordPress environments it is extremely dangerous. Once configuration files such as wp-config.php are exposed, database credentials, authentication salts, and secret keys are compromised. In many real hosting environments, LFI can be reliably chained into full Remote Code Execution (RCE).

This makes the vulnerability high-impact, low-complexity, and highly attractive to attackers.

Technical Root Cause

The vulnerability occurs because user-controlled input is passed directly (or with insufficient filtering) into PHP file inclusion logic such as:

• include()
• require()
• include_once()
• require_once()

The affected TheGem Elementor component dynamically resolves template or asset files based on request parameters. The plugin fails to:

• Enforce a strict allow-list of filenames
• Normalize and validate resolved paths
• Block directory traversal sequences
• Restrict inclusion to a fixed, trusted directory

As a result, attackers can manipulate path values using traversal sequences (../) to escape the intended directory and include arbitrary local files.

Exploitation Flow

1. Local File Disclosure (Initial Impact)

An attacker sends a crafted HTTP request where the vulnerable parameter contains a filesystem path instead of a legitimate template reference.

This allows reading sensitive files such as:

• WordPress configuration
• Environment secrets
• Backup files
• Server configuration files

Once wp-config.php is disclosed, the attacker gains:

• Database name, user, and password
• Authentication salts and keys
• Table prefix (useful for targeted SQL abuse)

At this stage, full site compromise is often inevitable.

2. LFI → RCE Chaining (Advanced Impact)

In many WordPress hosting environments, LFI can be escalated to RCE through one of the following methods:

A. Log File Poisoning

If attacker-controlled data is written into a log file that can later be included, PHP code embedded in the log will execute.

Common injection points:

• User-Agent header
• Referer header
• POST data logged by plugins or debug modes

B. Writable Upload + Include

If file uploads are permitted and stored in a web-accessible or includable directory, an attacker can:

1. Upload a file containing PHP payload
2. Trigger LFI to include that uploaded file
3. Achieve arbitrary code execution

C. Temporary File Inclusion

Some PHP setups write temporary session or cache files in predictable locations that may be includable.

Example Payloads

Note: These payloads are for testing purpose only.

Basic LFI Test Payloads

../../../../etc/passwd

../../../../wp-config.php

../wp-config.php

../../../../../../var/www/html/wp-config.php

Expected indicators:

• Response contains root:x:0:0
• Response contains DB_NAME, DB_USER, or AUTH_KEY

Windows Hosting Test Payloads

..\..\..\windows\win.ini

..\..\..\xampp\php\php.ini

Log Poisoning Probe (Header Injection Test)

Send a request with this User-Agent header:

<?php echo md5("lfi_test"); ?>

Then attempt to include common log paths via LFI:

../../../../var/log/apache2/access.log

If the hash output appears in the response, RCE is confirmed.

MITRE ATT&CK Mapping

Detection Strategy

Log Sources to Monitor

• Web server access logs (Apache / Nginx)
• PHP error logs
• WordPress debug logs
• WAF logs
• File integrity monitoring alerts
• EDR / host process telemetry

High-Signal Indicators of Attack

• Requests containing ../ or ..\\
• Requests referencing:
  • wp-config.php
  • /etc/passwd
  • .log
  • .ini
• Sudden 200 OK responses with unusually large bodies
• PHP warnings mentioning include() or require()
• New .php files appearing in uploads/, cache/, or tmp/

Detection Logic

Request_URI contains "../"
AND
(Request_URI contains "wp-config.php" OR "etc/passwd")

New PHP file created outside core plugin/theme directories

Block requests containing "../", "<?php", or "base64_decode"

Risk Assessment Summary

Mitigation & Remediation

Immediate Actions

1. Update the plugin immediately to the vendor-provided fixed version
2. If patching is not possible, disable the TheGem Elementor plugin entirely
3. Deploy WAF rules blocking directory traversal patterns
4. Restrict PHP execution in uploads/ directories
5. Review logs for signs of past exploitation

Post-Incident Hardening

• Rotate all WordPress secrets and database credentials
• Reset admin passwords and review user accounts
• Scan for backdoors and rogue plugins/themes
• Restore from a clean backup taken before exploitation

Official Patch Details (Vendor Fix)

CodexThemes has officially fixed CVE-2025-69356 in a subsequent release of TheGem Theme Elements for Elementor. The patch addresses the vulnerability by restricting file inclusion logic and ensuring that user-controlled input can no longer influence PHP include or require operations outside of approved directories.

What the Patch Changes (Technical Summary)

The vendor fix implements the following security controls:

• Enforces strict allow-listing of template and asset files
• Normalizes and validates file paths before inclusion
• Blocks directory traversal sequences such as ../ and ..\\
• Restricts file inclusion to predefined internal plugin directories
• Prevents arbitrary file paths from being resolved at runtime

These changes effectively eliminate the ability to include unintended local files, closing both:

• Direct local file disclosure
• LFI-to-RCE chaining paths

Fixed Version

• Patched in: Versions after 5.11.0
• Vulnerable: Versions 5.11.0 and below

Administrators should verify the installed version after updating and ensure no older plugin files remain on disk.

Official Patch / Update Link (Vendor Source)

Official CodexThemes update and changelog page:
https://codexthemes.com/thegem/documentation/changelog/

Final Takeaway

This vulnerability is not theoretical. LFI flaws in WordPress ecosystems are routinely exploited at scale, especially when paired with weak hosting defaults.

If your site runs:

• TheGem
• Elementor
• Internet-facing WordPress