CVE-2012-3382: Mono

Medium severity, CVSS 4.3. EPSS: 1.9% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the ProcessRequest function in mcs/class/System.Web/System.Web/HttpForbiddenHandler.cs in Mono 2.10.8 and earlier allows remote attackers to inject arbitrary web script or HTML via a file with a crafted name and a forbidden extension, which is not properly handled in an error message.

Affected products

• Mono Mono: up to and including 2.10.8

Published 2012-07-12. Last modified 2026-06-16.