CVE-2025-64273

7.5 HIGH

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the GetResponse Email Marketing WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. Attackers can perform unauthorized actions that should require proper authentication. This affects all WordPress sites using the GetResponse Official plugin version 1.5.3 and earlier.

💻 Affected Systems

Products:
  • Email marketing for WordPress by GetResponse Official
Versions: from n/a through <= 1.5.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using vulnerable versions of the GetResponse Official plugin are affected regardless of configuration.

⚠️ 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

Attackers could gain administrative access to WordPress sites, modify plugin settings, access email marketing data, or potentially compromise the entire WordPress installation.

🟠

Likely Case

Unauthorized users could modify GetResponse plugin settings, access email marketing campaign data, or manipulate subscriber lists without proper authentication.

🟢

If Mitigated

With proper access controls and authentication mechanisms in place, only authorized administrators can access plugin functionality.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Missing authorization vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.5.4 or later

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/getresponse-official/vulnerability/wordpress-email-marketing-for-wordpress-by-getresponse-official-plugin-1-5-3-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 'Email marketing for WordPress by GetResponse Official'
4. Click 'Update Now' if available
5. If no update appears, manually download version 1.5.4+ from WordPress.org
6. Deactivate and delete old version
7. Upload and activate new version

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate the GetResponse plugin until patched

wp plugin deactivate getresponse-official

Restrict plugin access

all

Use WordPress security plugins to restrict access to plugin functionality

🧯 If You Can't Patch

  • Remove the GetResponse plugin entirely and use alternative email marketing solutions
  • Implement strict network access controls and web application firewalls to block unauthorized requests

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'Email marketing for WordPress by GetResponse Official' version 1.5.3 or earlier

Check Version:

wp plugin get getresponse-official --field=version

Verify Fix Applied:

Verify plugin version is 1.5.4 or later in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to GetResponse plugin endpoints
  • Unusual admin-level actions from non-admin users
  • Failed authentication attempts followed by successful plugin operations

Network Indicators:

  • HTTP requests to /wp-content/plugins/getresponse-official/ endpoints from unauthorized IPs
  • Unusual API calls to GetResponse services

SIEM Query:

source="wordpress.log" AND ("getresponse-official" OR "getresponse") AND (status=200 OR status=302) AND (user="unauthenticated" OR user="subscriber")

🔗 References

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