Using XMLHttpRequest, an attacker could have identified installed applications by probing error messages for loading external protocols. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
CWE-209
CVE-2021-43206
A server-generated error message containing sensitive information in Fortinet FortiOS 7.0.0 through 7.0.3, 6.4.0 through 6.4.8, 6.2.x, 6.0.x and FortiProxy 7.0.0 through 7.0.1, 2.0.x allows malicious webservers to retrieve a web proxy’s client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.
CVE-2021-42777
Stimulsoft (aka Stimulsoft Reports) 2013.1.1600.0, when Compilation Mode is used, allows an attacker to execute arbitrary C# code on any machine that renders a report, including the application server or a user’s local machine, as demonstrated by System.Diagnostics.Process.Start.
CVE-2021-4177
livehelperchat is vulnerable to Generation of Error Message Containing Sensitive Information
CVE-2021-40338
Hitachi Energy LinkOne product, has a vulnerability due to a web server misconfiguration, that enables debug mode and reveals the full path of the filesystem directory when an attacker generates errors during a query operation. This issue affects: Hitachi Energy LinkOne 3.20; 3.22; 3.23; 3.24; 3.25; 3.26.
CVE-2021-40126
A vulnerability in the web-based dashboard of Cisco Umbrella could allow an authenticated, remote attacker to perform an email enumeration attack against the Umbrella infrastructure. This vulnerability is due to an overly descriptive error message on the dashboard that appears when a user attempts to modify their email address when the new address already exists in the system. An attacker could exploit this vulnerability by attempting to modify the user’s email address. A successful exploit could allow the attacker to enumerate email addresses of users in the system.