Description
Apache HTTP Server 2.0.x and 2.2.x does not sanitize the HTTP Method specifier header from an HTTP request when it is reflected back in a "413 Request Entity Too Large" error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated via an HTTP request containing an invalid Content-length value, a similar issue to CVE-2006-3918.
Remediation
References
Related Vulnerabilities
WordPress Plugin Echo Sign Multiple Cross-Site Scripting Vulnerabilities (1.1)
MySQL Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2017-3313)
Moodle Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2021-43559)