What’s Vulnerable › Vulnerabilities

CVE-2021-33224

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-02-24 · updated 2026-07-09
• Weakness: CWE-434

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.

Affected products

• Umbraco.Forms.Issues: 8.7.0

References

• https://our.umbraco.com/packages/developer-tools/umbraco-forms
• https://our.umbraco.com/packages/developer-tools/umbraco-forms

Get alerted when CVE-2021-33224 or the next vulnerability affects your stack