CVE-2024-4260
📋 TL;DR
This vulnerability in the Page Builder Gutenberg Blocks WordPress plugin allows high-privilege users (contributors or above) to perform Server-Side Request Forgery (SSRF) attacks via shortcodes. Attackers can make the vulnerable WordPress server send requests to arbitrary internal or external hosts, potentially accessing sensitive internal services. Only WordPress sites using vulnerable versions of this specific plugin are affected.
💻 Affected Systems
- Page Builder Gutenberg Blocks WordPress plugin
📦 What is this software?
Coblocks by Godaddy
⚠️ Risk & Real-World Impact
Worst Case
An attacker with contributor privileges could use SSRF to access internal services, exfiltrate sensitive data from internal networks, or pivot to attack other internal systems.
Likely Case
Attackers scan for vulnerable sites and use SSRF to probe internal networks, potentially discovering and accessing unprotected internal services or metadata services.
If Mitigated
With proper network segmentation and least privilege access, impact is limited to the WordPress server itself with minimal access to internal resources.
🎯 Exploit Status
Exploitation requires contributor-level access. SSRF vulnerabilities are commonly weaponized in automated attacks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.1.12
Vendor Advisory: https://wpscan.com/vulnerability/69f33e20-8ff4-491c-8f37-a4eadd4ea8cf/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Page Builder Gutenberg Blocks'. 4. Click 'Update Now' if available. 5. If manual update needed, download version 3.1.12+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Remove vulnerable plugin
allTemporarily disable or remove the vulnerable plugin until patched
wp plugin deactivate ultimate-addons-for-gutenberg
wp plugin delete ultimate-addons-for-gutenberg
Restrict contributor privileges
allTemporarily downgrade contributor users to subscriber role or remove contributor access
wp user update <user_id> --role=subscriber
🧯 If You Can't Patch
- Implement network segmentation to isolate WordPress server from sensitive internal services
- Deploy web application firewall (WAF) rules to block SSRF patterns and outbound requests to internal IP ranges
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Page Builder Gutenberg Blocks' versionCheck Version:
wp plugin get ultimate-addons-for-gutenberg --field=versionVerify Fix Applied:
Verify plugin version is 3.1.12 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from WordPress server to internal IPs
- Multiple failed connection attempts to internal services from web server
Network Indicators:
- HTTP requests from WordPress server to internal metadata services (169.254.169.254)
- Web server making requests to internal IP ranges
SIEM Query:
source="wordpress.logs" AND (url CONTAINS "internal_ip" OR dest_ip IN (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 169.254.169.254))