CVE-2025-68924 in Forms
Summary
by MITRE • 01/16/2026
In Umbraco UmbracoForms through 8.13.16, an authenticated attacker can supply a malicious WSDL (aka Webservice) URL as a data source for remote code execution.
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Analysis
by VulDB Data Team • 01/16/2026
The vulnerability identified as CVE-2025-68924 affects Umbraco UmbracoForms versions through 8.13.16 and represents a critical security flaw that enables authenticated attackers to execute arbitrary code on affected systems. This vulnerability stems from insufficient validation of WSDL (Web Services Description Language) URLs provided as data sources within the forms functionality. The flaw allows an attacker with valid credentials to manipulate the data source configuration and potentially gain unauthorized access to execute malicious code on the server hosting the Umbraco instance.
The technical implementation of this vulnerability involves the improper handling of remote web service connections within the UmbracoForms component. When administrators configure forms to connect to external web services, the system accepts WSDL URLs without adequate sanitization or validation of the source. This creates an attack vector where malicious actors can supply crafted WSDL endpoints that, when processed by the application, trigger unintended code execution. The vulnerability specifically targets the data source configuration mechanism that allows external service integration, making it particularly dangerous in environments where form data is processed through external systems.
From an operational perspective, this vulnerability presents significant risk to organizations using UmbracoForms as it requires only authenticated access to exploit. An attacker with legitimate user credentials can modify form configurations to point to malicious WSDL endpoints, potentially leading to complete system compromise. The remote code execution capability allows for various malicious activities including data exfiltration, privilege escalation, and persistence mechanisms. The impact extends beyond immediate code execution to include potential lateral movement within network environments and long-term system compromise. Organizations with multiple Umbraco instances or those heavily reliant on form processing functionality face heightened risk exposure from this vulnerability.
Organizations should implement immediate mitigation strategies including upgrading to the latest available version of UmbracoForms that addresses this vulnerability, implementing strict access controls and monitoring for unauthorized form configuration changes, and conducting thorough security assessments of existing form configurations. The vulnerability aligns with CWE-20 Improper Input Validation, specifically concerning the lack of proper validation of external service endpoints. From an ATT&CK framework perspective, this vulnerability maps to techniques involving command and control through web service integration and privilege escalation via compromised application components. Security teams should also consider implementing network segmentation to limit the potential impact of successful exploitation and establish robust monitoring for unusual WSDL endpoint access patterns. Additionally, organizations should review their form data processing workflows and implement strict validation of all external service integrations to prevent similar vulnerabilities from occurring in other components of their Umbraco environment.