CVE-2025-60153

7.5 HIGH

📋 TL;DR

This CVE describes a PHP Local File Inclusion vulnerability in the WordPress Subscribe To Unlock plugin. Attackers can include arbitrary local files on the server, potentially leading to sensitive information disclosure or remote code execution. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • WordPress Subscribe To Unlock plugin
Versions: n/a through 1.1.5
Operating Systems: All operating systems running PHP
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with the vulnerable plugin installed and activated.

⚠️ 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

Remote code execution leading to complete server compromise, data theft, and website defacement.

🟠

Likely Case

Sensitive file disclosure (configuration files, database credentials) and limited code execution.

🟢

If Mitigated

Information disclosure limited to readable files within web server permissions.

🌐 Internet-Facing: HIGH - WordPress plugins are typically internet-facing and this vulnerability requires no authentication.
🏢 Internal Only: MEDIUM - Internal WordPress installations could still be exploited by internal attackers or through phishing.

🎯 Exploit Status

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

Simple HTTP requests can trigger the vulnerability. Public exploit details are available.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.1.6 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/subscribe-to-unlock/vulnerability/wordpress-subscribe-to-unlock-plugin-1-1-5-local-file-inclusion-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Subscribe To Unlock plugin. 4. Click 'Update Now' if update available. 5. If no update, deactivate and delete plugin immediately.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Deactivate the Subscribe To Unlock plugin to remove the vulnerability

wp plugin deactivate subscribe-to-unlock

Restrict file inclusion

linux

Add PHP configuration to disable allow_url_include and restrict open_basedir

allow_url_include = Off
open_basedir = /var/www/html

🧯 If You Can't Patch

  • Deactivate and remove the Subscribe To Unlock plugin immediately
  • Implement web application firewall rules to block requests with suspicious file inclusion parameters

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Installed Plugins for Subscribe To Unlock version 1.1.5 or earlier

Check Version:

wp plugin get subscribe-to-unlock --field=version

Verify Fix Applied:

Verify plugin version is 1.1.6 or later, or confirm plugin is deactivated/removed

📡 Detection & Monitoring

Log Indicators:

  • HTTP requests with suspicious file parameters like ?file=../../etc/passwd
  • PHP warnings about file inclusion failures

Network Indicators:

  • HTTP GET requests with file inclusion parameters targeting the plugin endpoint

SIEM Query:

source="web_logs" AND (uri="*subscribe-to-unlock*" AND (param="*file=*" OR param="*include=*" OR param="*require=*"))

🔗 References

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