CVE-2025-47601

8.8 HIGH

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the MaxiBlocks WordPress plugin that allows attackers to update arbitrary WordPress options, leading to privilege escalation. Attackers can exploit this to gain administrative access to WordPress sites. All WordPress sites using MaxiBlocks versions up to 2.1.0 are affected.

💻 Affected Systems

Products:
  • MaxiBlocks WordPress Plugin
Versions: All versions up to and including 2.1.0
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations with MaxiBlocks plugin enabled are vulnerable regardless of WordPress version or 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 gain full administrative control over WordPress sites, allowing them to install backdoors, steal data, deface websites, or use the site for further attacks.

🟠

Likely Case

Attackers escalate privileges to administrator level, enabling them to modify content, install malicious plugins/themes, or create new admin accounts.

🟢

If Mitigated

With proper authorization checks and least privilege principles, attackers would be unable to modify WordPress options without proper permissions.

🌐 Internet-Facing: HIGH - WordPress sites are typically internet-facing, and this vulnerability allows unauthenticated or low-privileged users to gain admin access.
🏢 Internal Only: MEDIUM - Internal attackers with some WordPress access could exploit this to gain administrative privileges within the WordPress environment.

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability is publicly documented with technical details, making exploitation straightforward for attackers with basic WordPress knowledge.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.1.1 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/maxi-blocks/vulnerability/wordpress-maxiblocks-plugin-2-1-0-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 MaxiBlocks and click 'Update Now'. 4. Alternatively, download version 2.1.1+ from WordPress.org and manually replace the plugin files.

🔧 Temporary Workarounds

Disable MaxiBlocks Plugin

all

Temporarily deactivate the vulnerable plugin until patched

wp plugin deactivate maxi-blocks

Restrict Plugin Access

all

Use web application firewall to block access to MaxiBlocks endpoints

🧯 If You Can't Patch

  • Remove MaxiBlocks plugin completely from production sites
  • Implement strict network segmentation and monitor for suspicious WordPress admin activity

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for MaxiBlocks version. If version is 2.1.0 or lower, you are vulnerable.

Check Version:

wp plugin get maxi-blocks --field=version

Verify Fix Applied:

After updating, verify MaxiBlocks version shows 2.1.1 or higher in WordPress plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized wp-admin access from new IPs
  • Unexpected user role changes in WordPress logs
  • Suspicious option updates in WordPress database

Network Indicators:

  • HTTP POST requests to MaxiBlocks endpoints with option modification parameters
  • Unusual traffic to /wp-admin/admin-ajax.php from unauthenticated users

SIEM Query:

source="wordpress.log" AND ("maxiblocks" OR "option update" OR "user_role_changed")

🔗 References

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