Deserialization of untrusted data in umbraco Forms
Priority LOW 36CWE-829Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution, Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-829 and CWE-915.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00755 55th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| umbraco | Forms | up to 8.13.16 | — | No fix listed | CNA |
| — | UmbracoForms (NuGet) | up to 8.13.16 | — | No fix listed | GHSA-vrgw-pc9c-qrrc |
- Forms Vendorumbraco Affected up to 8.13.16 Fixed in — No fix listed CNA
- UmbracoForms (NuGet) Vendor— Affected up to 8.13.16 Fixed in — No fix listed GHSA-vrgw-pc9c-qrrc
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68924
- 2026-10-03 Alias added: GHSA-vrgw-pc9c-qrrc
References
Advisory 2
Other 5
- https://our.umbraco.com/packages/developer-tools/umbraco-forms/
- https://www.nuget.org/packages/UmbracoForms
- https://github.com/umbraco/Umbraco.Forms.Issues/security/advisories/GHSA-vrgw-pc9c-qrrc
- https://github.com/umbraco/Umbraco.Forms.Issues
- https://our.umbraco.com/packages/developer-tools/umbraco-forms
More Umbraco Forms vulnerabilities
- TI-2021-12768 File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to… CVSS 3.1CRITICAL 9.8
- TI-2020-06205 Insecure Defaults CVSS 3.1HIGH 7.5
- TI-2025-16851 Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms CVSS 3.1MEDIUM 5.8
- TI-2026-19909 Umbraco.Forms has path traversal and file enumeration vulnerability in Linux/Mac CVSS 4.0MEDIUM 6.0
- TI-2024-23308 Stored Cross-site Scripting on Components of Umbraco Forms CVSS 3.1MEDIUM 5.4
- TI-2025-29810 Umbraco.Forms has HTML injection vulnerability in 'Send email' workflow CVSS 4.0LOW 2.3
Sources
- CVE-2025-68924 · CVE Program
- CVE-2025-68924 · NVD
- FIRST EPSS
- GHSA-vrgw-pc9c-qrrc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences