CVE-2025-49988

5.3 MEDIUM

📋 TL;DR

This vulnerability allows attackers to bypass authorization controls in the Renzo Contact Form 7 AWeber Extension WordPress plugin. Attackers can exploit misconfigured access controls to perform unauthorized actions. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Renzo Contact Form 7 AWeber Extension WordPress Plugin
Versions: All versions up to and including 0.1.38
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with this specific 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

Complete compromise of the WordPress site through privilege escalation, allowing attackers to modify plugin settings, inject malicious code, or access sensitive form submission data.

🟠

Likely Case

Unauthorized modification of AWeber integration settings, potentially redirect form submissions to attacker-controlled systems or expose subscriber data.

🟢

If Mitigated

Limited impact if proper network segmentation and WordPress hardening are implemented, though the vulnerability still exists at the application layer.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires some WordPress access but not necessarily admin privileges. The vulnerability is in access control logic, making it relatively easy to exploit once identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 0.1.39 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/integrate-contact-form-7-and-aweber/vulnerability/wordpress-contact-form-7-aweber-extension-plugin-0-1-38-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Contact Form 7 AWeber Extension'. 4. Click 'Update Now' if available. 5. If no update appears, download version 0.1.39+ from WordPress.org and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the vulnerable plugin until patched

wp plugin deactivate integrate-contact-form-7-and-aweber

Restrict Admin Access

all

Limit WordPress admin access to trusted IP addresses only

# Add to .htaccess for Apache:
Order deny,allow
Deny from all
Allow from 192.168.1.0/24
Allow from 10.0.0.0/8
# Add to nginx config:
location /wp-admin {
    allow 192.168.1.0/24;
    allow 10.0.0.0/8;
    deny all;
}

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress admin interface
  • Enable WordPress security plugins that monitor for unauthorized access attempts and privilege escalation

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Contact Form 7 AWeber Extension' version 0.1.38 or earlier

Check Version:

wp plugin get integrate-contact-form-7-and-aweber --field=version

Verify Fix Applied:

Verify plugin version is 0.1.39 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to plugin admin pages
  • Unexpected modifications to AWeber plugin settings
  • Multiple failed login attempts followed by successful access to restricted areas

Network Indicators:

  • Unusual traffic patterns to /wp-admin/admin.php pages related to the AWeber plugin
  • Requests to plugin endpoints from unauthorized IP addresses

SIEM Query:

source="wordpress.log" AND ("aweber" OR "contact-form-7-aweber") AND ("admin" OR "settings" OR "update") AND status=200 AND user_role!="administrator"

🔗 References

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