CVE-2025-31042

5.3 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the Sandwich Adsense WordPress plugin that allows attackers to bypass access controls. It affects all versions up to 4.0.2, potentially enabling unauthorized actions on WordPress sites using this plugin.

💻 Affected Systems

Products:
  • Sandwich Adsense WordPress Plugin
Versions: n/a through 4.0.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress sites with the Sandwich Adsense plugin installed and active.

⚠️ 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 modify plugin settings, inject malicious ads, or potentially escalate privileges to compromise the entire WordPress site.

🟠

Likely Case

Unauthorized users could change ad configurations, inject unwanted content, or disrupt ad revenue streams.

🟢

If Mitigated

With proper access controls and authentication checks, only authorized administrators could modify plugin settings.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 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: Versions after 4.0.2

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/firsth3tagadsense/vulnerability/wordpress-sandwich-adsense-4-0-2-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 Sandwich Adsense
4. Click 'Update Now' if available
5. If no update available, deactivate and remove the plugin

🔧 Temporary Workarounds

Disable Sandwich Adsense Plugin

all

Temporarily deactivate the vulnerable plugin until patched version is available

wp plugin deactivate sandwich-adsense

Restrict Access to WordPress Admin

all

Implement IP whitelisting or additional authentication for WordPress admin area

🧯 If You Can't Patch

  • Remove Sandwich Adsense plugin completely and use alternative ad management solution
  • Implement web application firewall (WAF) rules to block unauthorized access to plugin endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Installed Plugins for Sandwich Adsense version 4.0.2 or earlier

Check Version:

wp plugin get sandwich-adsense --field=version

Verify Fix Applied:

Verify Sandwich Adsense plugin version is higher than 4.0.2 or plugin is removed

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to Sandwich Adsense plugin endpoints
  • Unexpected modifications to plugin settings

Network Indicators:

  • HTTP requests to /wp-admin/admin-ajax.php with sandwich-adsense actions from unauthorized IPs

SIEM Query:

source="wordpress.log" AND ("sandwich-adsense" OR "firsth3tagadsense") AND (status=200 OR status=403) AND user="unauthenticated"

🔗 References

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