CVE-2021-33224 File upload in n/a
Unauthenticated attackers can execute arbitrary code by uploading malicious web.config and asp files in Umbraco Forms.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33224?
CVE-2021-33224 is a critical vulnerability in n/a, published on 24 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-434
Which versions are affected by CVE-2021-33224?
It affects 1 product.
Products include Umbraco Umbraco Forms.
How do I fix CVE-2021-33224?
No fix has been published for CVE-2021-33224 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-33224 being exploited?
There is no known exploitation of CVE-2021-33224 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2025-68924 UmbracoForms Vulnerable to Remote Code Execution via Untrusted WSDL Compilation in Dynamic SOAP Client Generation
- CVE-2026-24687 Umbraco.Forms has path traversal and file enumeration vulnerability in Linux/Mac
- CVE-2025-23041 Short and Long Answer Fields Are Not Validated Server-Side For Maximum Length in Umbraco.Forms
- CVE-2020-7685 Insecure Defaults
- CVE-2024-35239 Stored Cross-site Scripting on Components of Umbraco Forms
Sources
Also known as GHSA-74cc-qrjm-qwjc.