CVE-2021-33224

CRITICAL

Umbraco Forms 8.7.0 - Unauthenticated Arbitrary File Upload and Remote Code Execution

Title source: llm

File upload vulnerability in Umbraco Forms v.8.7.0 allows unauthenticated attackers to execute arbitrary code via a crafted web.config and asp file.

Core 2

Core References

Product

Release Notes

CVSS v3 9.8

EPSS 0.0074

EPSS Percentile 49.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vulnrichment

Exploitation none

Automatable yes

Technical Impact total

CWE

CWE-434

Status published

Products (1)

umbraco/umbraco_forms 8.7.0

Published Feb 24, 2023

Tracked Since Feb 18, 2026