CVE-2025-68924: Umbraco Forms · Untrusted Functionality Inclusion
Affects Umbraco FormsSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 8.13.16 soon.
Data as of 26 Oct 2026, 09:15 UTC
- EPSS
- 0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 8.13.16
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade umbracoforms to 8.13.16.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| UmbracoForms | Affected
| Fixed in– |
NuGetumbracoformspkg:nuget/umbracoformsOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
- Immediate mitigation should focus on restricting access to Umbraco Forms administration interfaces to trusted personnel only, using strong authentication mechanisms such as multi-factor authentication (MFA).
- Implement strict input validation and sanitization for any external URLs, especially WSDL data sources, to prevent injection of malicious content.
- Network segmentation should be employed to isolate web servers running Umbraco Forms from critical internal systems, limiting the blast radius of any compromise.
- Monitor logs and network traffic for unusual requests or connections to suspicious external WSDL URLs.
- Employ web application firewalls (WAFs) with custom rules to detect and block malicious payloads targeting this vulnerability.
- Stay informed on vendor updates and apply patches promptly once released.
- Conduct regular security audits and penetration testing focused on web services integrations.
- Educate administrators about the risks of adding untrusted external data sources and enforce strict change management policies.
Description
CVE-2025-68924 is a high-severity vulnerability in Umbraco Forms up to version 8.13.16 that allows an authenticated attacker to supply a malicious WSDL URL as a data source, leading to remote code execution. The flaw stems from inclusion of functionality from an untrusted control sphere (CWE-829), enabling attackers to execute arbitrary code on the server. Exploitation requires authentication and a high level of attack complexity but does not require user interaction. The vulnerability impacts confidentiality, integrity, and availability of affected systems. No known exploits are currently reported in the wild. European organizations using Umbraco Forms should prioritize patching once available and restrict access to authenticated users. Countries with significant Umbraco usage and critical web infrastructure are at higher risk. Mitigations include strict validation of WSDL URLs, network segmentation, and monitoring for anomalous behavior.