CVE-2025-39533

8.8 HIGH

📋 TL;DR

This vulnerability allows attackers to update arbitrary WordPress options without proper authorization, leading to privilege escalation. It affects all WordPress sites running the Starfish Reviews plugin versions up to and including 3.1.14. Attackers can gain administrative access to vulnerable WordPress installations.

💻 Affected Systems

Products:
  • Starfish Review Generation & Marketing WordPress Plugin
Versions: n/a through 3.1.14
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with vulnerable plugin versions 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 site takeover where attackers gain administrator privileges, install backdoors, steal sensitive data, deface the site, or use it for further attacks.

🟠

Likely Case

Attackers gain administrative access to WordPress dashboard, modify content, install malicious plugins/themes, or create new admin accounts.

🟢

If Mitigated

Limited impact if proper network segmentation, web application firewalls, and least privilege principles are implemented.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires some level of access but not necessarily admin privileges. The vulnerability is publicly documented with technical details.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.1.15 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/starfish-reviews/vulnerability/wordpress-starfish-review-generation-marketing-plugin-3-1-14-arbitrary-option-update-to-privilege-escalation-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Starfish Review Generation & Marketing'. 4. Click 'Update Now' if available. 5. Alternatively, download version 3.1.15+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the vulnerable plugin until patching is possible.

wp plugin deactivate starfish-reviews

Web Application Firewall Rule

all

Block requests to vulnerable plugin endpoints.

🧯 If You Can't Patch

  • Remove the plugin completely if not essential for business operations.
  • Implement strict network access controls to limit who can access the WordPress admin interface.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Starfish Review Generation & Marketing. If version is 3.1.14 or lower, you are vulnerable.

Check Version:

wp plugin get starfish-reviews --field=version

Verify Fix Applied:

After updating, verify plugin version shows 3.1.15 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual option_update operations in WordPress debug logs
  • Unauthorized users accessing wp-admin/admin-ajax.php with starfish-reviews actions
  • New administrator accounts created unexpectedly

Network Indicators:

  • POST requests to /wp-admin/admin-ajax.php with 'action' parameter containing 'starfish_reviews' patterns
  • Unusual traffic to plugin-specific endpoints from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("option_update" OR "starfish_reviews") AND user_role!="administrator"

🔗 References

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