What is CVE-2020-7685?

CVE-2020-7685 is a medium-severity vulnerability in Umbraco Forms, classified under Initialization of a Resource with an Insecure Default. CVSS score: 5.4/10. Published 2020-07-28.

How severe is CVE-2020-7685?

Medium severity. CVSS v3 base score is 5.4 out of 10.

RCE in Umbraco Forms

CVE-2020-7685

This affects all versions of package UmbracoForms. When using the default configuration for upload forms, it is possible to upload arbitrary file types. The package offers a way for users to mitigate the issue. The users of this package can create a custom workflow and frontend validation that blocks certain file types, depending on their security needs and policies.

Published 2020-07-28 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.009 (58.1th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 58.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Umbraco Forms
Umbracoforms — versions 0

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

snyk.io/vuln/SNYK-DOTNET-UMBRACOFORMS-595765 (Third Party Advisory)

Frequently asked questions

What is CVE-2020-7685?: CVE-2020-7685 is a medium-severity vulnerability in Umbraco Forms, classified under Initialization of a Resource with an Insecure Default. CVSS score: 5.4/10. Published 2020-07-28.
How severe is CVE-2020-7685?: Medium severity. CVSS v3 base score is 5.4 out of 10.