CVE-2025-12388
📋 TL;DR
The B Carousel Block WordPress plugin up to version 1.1.5 contains a Server-Side Request Forgery (SSRF) vulnerability that allows authenticated attackers with subscriber-level access or higher to make arbitrary web requests from the vulnerable server. This enables attackers to query and potentially modify internal services that are normally inaccessible from external networks. WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- B Carousel Block – Responsive Image and Content Carousel WordPress plugin
⚠️ 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.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access sensitive internal services, exfiltrate data from internal networks, perform port scanning of internal infrastructure, or interact with cloud metadata services to escalate privileges.
Likely Case
Attackers will scan internal networks, access internal web applications, and potentially retrieve sensitive information from services like databases, management interfaces, or cloud metadata endpoints.
If Mitigated
With proper network segmentation and internal service authentication, impact is limited to information disclosure about internal network structure and accessible services.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once credentials are obtained. The vulnerability is in a widely used function with predictable exploitation patterns.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 1.1.5
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3388271/b-carousel-block
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'B Carousel Block' and click 'Update Now'. 4. Alternatively, download latest version from WordPress plugin repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the B Carousel Block plugin until patched
wp plugin deactivate b-carousel-block
Restrict user registration
allDisable new user registration to prevent attackers from obtaining subscriber accounts
Update WordPress settings: Settings → General → Membership → Uncheck 'Anyone can register'
🧯 If You Can't Patch
- Implement network-level restrictions to block outbound HTTP requests from web servers to internal networks
- Deploy web application firewall rules to detect and block SSRF patterns in plugin requests
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins → B Carousel Block version. If version is 1.1.5 or lower, you are vulnerable.Check Version:
wp plugin get b-carousel-block --field=versionVerify Fix Applied:
After updating, verify plugin version is higher than 1.1.5. Test plugin functionality to ensure carousels still work properly.📡 Detection & Monitoring
Log Indicators:
- Unusual outbound HTTP requests from web server to internal IP addresses
- Multiple failed authentication attempts followed by successful subscriber login
- HTTP requests to cloud metadata endpoints (169.254.169.254, 100.100.100.200)
Network Indicators:
- Web server making requests to internal services on non-standard ports
- HTTP traffic from web server to localhost or RFC1918 addresses
SIEM Query:
source="web_server_logs" AND (uri CONTAINS "/wp-content/plugins/b-carousel-block/" OR user_agent CONTAINS "wp_remote_request") AND (dest_ip IN (10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, 127.0.0.0/8, 169.254.169.254))