CVE-2025-68924
📋 TL;DR
This vulnerability allows authenticated attackers in UmbracoForms to execute arbitrary code by supplying a malicious WSDL URL as a data source. It affects all UmbracoForms installations up to version 8.13.16 where users have authenticated access to configure data sources.
💻 Affected Systems
- UmbracoForms
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with attacker gaining complete control over the web server, allowing data theft, lateral movement, and persistent backdoor installation.
Likely Case
Remote code execution leading to web shell deployment, data exfiltration, or cryptocurrency mining malware installation.
If Mitigated
Limited impact if proper network segmentation, least privilege access, and input validation are implemented.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once credentials are obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.13.17 or later
Vendor Advisory: https://github.com/advisories/GHSA-vrgw-pc9c-qrrc
Restart Required: Yes
Instructions:
1. Update UmbracoForms package via NuGet or package manager. 2. Update to version 8.13.17 or higher. 3. Restart the application pool or web server. 4. Verify the update in Umbraco backoffice.
🔧 Temporary Workarounds
Restrict WSDL URL Configuration
allLimit which users can configure data source URLs in UmbracoForms to only trusted administrators.
Network Segmentation
allBlock outbound connections from Umbraco servers to untrusted networks to prevent fetching malicious WSDL files.
🧯 If You Can't Patch
- Implement strict access controls to limit who can configure UmbracoForms data sources
- Deploy web application firewall rules to block suspicious WSDL URL patterns
🔍 How to Verify
Check if Vulnerable:
Check UmbracoForms package version in Umbraco backoffice under Settings > Packages > Installed Packages.Check Version:
Check the Umbraco backoffice or examine the UmbracoForms.dll file version.Verify Fix Applied:
Confirm UmbracoForms version is 8.13.17 or higher in the installed packages list.📡 Detection & Monitoring
Log Indicators:
- Unusual WSDL URL configurations in Umbraco logs
- Suspicious process execution from Umbraco worker processes
Network Indicators:
- Outbound connections from Umbraco server to unusual domains fetching WSDL files
SIEM Query:
source="umbraco" AND ("WSDL" OR "datasource") AND url="*://*"