CVE-2025-64228

4.3 MEDIUM

📋 TL;DR

This vulnerability in the SUMO Affiliates Pro WordPress plugin allows unauthorized users to retrieve embedded sensitive data, such as configuration details or internal information, from affected installations. It impacts all versions up to and including 11.0.0, putting WordPress sites using this plugin at risk of information disclosure.

💻 Affected Systems

Products:
  • SUMO Affiliates Pro (affs) WordPress plugin
Versions: from n/a through <= 11.0.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: This affects all default installations of the plugin within the specified version range; no special configuration is required for exploitation.

⚠️ 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

An attacker could access sensitive system information, potentially leading to further exploitation like credential theft, privilege escalation, or data breaches.

🟠

Likely Case

Unauthorized retrieval of plugin-specific sensitive data, such as affiliate tracking details or configuration settings, which could be used for reconnaissance or targeted attacks.

🟢

If Mitigated

With proper access controls and network segmentation, impact is limited to minor information leakage with no direct system compromise.

🌐 Internet-Facing: HIGH, as WordPress plugins are typically exposed to the internet, making them accessible to remote attackers.
🏢 Internal Only: LOW, assuming the plugin is only used on internal networks with restricted access, but risk increases if internal users are untrusted.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation likely requires some knowledge of the plugin's structure, but no public proof-of-concept is available as of now.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Version after 11.0.0 (check vendor for exact version)

Vendor Advisory: https://patchstack.com/database/Wordpress/Plugin/affs/vulnerability/wordpress-sumo-affiliates-pro-plugin-11-0-0-sensitive-data-exposure-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into the WordPress admin dashboard. 2. Navigate to Plugins > Installed Plugins. 3. Find SUMO Affiliates Pro and check for updates. 4. If an update is available, click 'Update Now'. 5. Alternatively, manually download the latest version from the vendor and replace the plugin files via FTP or file manager.

🔧 Temporary Workarounds

Disable or Remove Plugin

all

Temporarily disable or uninstall the SUMO Affiliates Pro plugin to prevent exploitation until a patch can be applied.

In WordPress admin: Plugins > Installed Plugins > Deactivate SUMO Affiliates Pro

🧯 If You Can't Patch

  • Implement strict access controls and network segmentation to limit exposure of the WordPress site to trusted users only.
  • Monitor logs for unusual access patterns or attempts to retrieve sensitive data from the plugin endpoints.

🔍 How to Verify

Check if Vulnerable:

Check the plugin version in WordPress admin under Plugins > Installed Plugins; if SUMO Affiliates Pro is version 11.0.0 or earlier, it is vulnerable.

Check Version:

In WordPress, use: wp plugin list --name='SUMO Affiliates Pro' --field=version (requires WP-CLI)

Verify Fix Applied:

After updating, verify the plugin version is above 11.0.0 in the WordPress plugins list and test that sensitive data endpoints are no longer accessible.

📡 Detection & Monitoring

Log Indicators:

  • Unusual HTTP requests to plugin-specific URLs, especially those attempting to access data retrieval endpoints.

Network Indicators:

  • Traffic spikes to paths containing 'affs' or plugin-related terms, indicating scanning or exploitation attempts.

SIEM Query:

Example: source="web_logs" AND url="*affs*" AND (status=200 OR status=403) | stats count by src_ip

🔗 References

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