CVE-2025-26735

7.5 HIGH

📋 TL;DR

This CVE describes a PHP remote file inclusion vulnerability in the Grip WordPress theme. Attackers can include arbitrary remote files, potentially leading to remote code execution. Users running Grip theme versions up to 1.0.9 are affected.

💻 Affected Systems

Products:
  • Grip WordPress Theme
Versions: n/a through 1.0.9
Operating Systems: Any OS running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Grip theme active. PHP configuration with allow_url_include enabled increases risk.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full server compromise via remote code execution, allowing attackers to install malware, steal data, or pivot to other systems.

🟠

Likely Case

Website defacement, data theft, or installation of backdoors/webshells on vulnerable WordPress sites.

🟢

If Mitigated

Limited impact if proper file permissions, web application firewalls, and input validation are in place.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation is straightforward with publicly available proof-of-concept code. No authentication required.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.1.0 or later

Vendor Advisory: https://patchstack.com/database/wordpress/theme/grip/vulnerability/wordpress-grip-theme-1-0-9-local-file-inclusion-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Appearance > Themes. 3. Update Grip theme to version 1.1.0 or later. 4. Clear any caching plugins/CDN caches.

🔧 Temporary Workarounds

Disable allow_url_include

all

Modify PHP configuration to prevent remote file inclusion

php.ini: allow_url_include = Off

Web Application Firewall Rule

all

Block requests containing suspicious include/require parameters

🧯 If You Can't Patch

  • Switch to a different WordPress theme immediately
  • Implement strict file permissions and disable PHP execution in upload directories

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Appearance > Themes for Grip theme version 1.0.9 or earlier

Check Version:

WordPress: wp theme list --field=name,status,version | grep grip

Verify Fix Applied:

Confirm Grip theme version is 1.1.0 or later in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual PHP include/require statements in web server logs
  • Requests with suspicious file parameters like ?file=http://

Network Indicators:

  • HTTP requests with remote URLs in file inclusion parameters
  • Outbound connections to attacker-controlled servers after exploitation

SIEM Query:

source="web_server" AND ("include" OR "require") AND ("http://" OR "https://" OR "ftp://")

🔗 References

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