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CVE-2020-7685: Insecure defaults in UmbracoForms

7.5

CVSS Score
3.1

Basic Information

EPSS Score
0.62689%
Published
7/29/2020
Updated
3/3/2023
KEV Status
No
Technology
TechnologyC#

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Package NameEcosystemVulnerable VersionsFirst Patched Version
UmbracoFormsnuget<= 8.4.1

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability stems from insecure default configuration rather than specific function implementations. The advisory indicates the default file upload handling lacks proper validation, but no code examples, commit diffs, or function names are provided in the vulnerability details. While core file upload processing functions (e.g., file type validation routines) are likely involved, the absence of concrete technical details about the implementation prevents high-confidence identification of specific vulnerable functions. The CWE-1188 classification confirms this is a default configuration/resource initialization issue rather than a flaw in a specific function's logic.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

T*is *****ts *ll v*rsions o* p**k*** Um*r**o*orms. W**n usin* t** ****ult *on*i*ur*tion *or uplo** *orms, it is possi*l* to uplo** *r*itr*ry *il* typ*s. T** p**k*** o***rs * w*y *or us*rs to miti**t* t** issu*. T** us*rs o* t*is p**k*** **n *r**t* *

Reasoning

T** vuln*r**ility st*ms *rom ins**ur* ****ult *on*i*ur*tion r*t**r t**n sp**i*i* `*un*tion` impl*m*nt*tions. T** **visory in*i**t*s t** ****ult *il* uplo** **n*lin* l**ks prop*r `v*li**tion`, *ut no *o** *x*mpl*s, *ommit *i**s, or `*un*tion` n*m*s *r