Description
http_protocol.c in (1) IBM HTTP Server 6.0 before 6.0.2.13 and 6.1 before 6.1.0.1, and (2) Apache HTTP Server 1.3 before 1.3.35, 2.0 before 2.0.58, and 2.2 before 2.2.2, does not sanitize the Expect header from an HTTP request when it is reflected back in an error message, which might allow cross-site scripting (XSS) style attacks using web client components that can send arbitrary headers in requests, as demonstrated using a Flash SWF file.
Remediation
References
Related Vulnerabilities
WebLogic Improper Access Control Vulnerability (CVE-2026-35298)
MediaWiki Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2020-15005)
Chamilo Deserialization of Untrusted Data Vulnerability (CVE-2025-50198)
WordPress Plugin Themify Builder Cross-Site Scripting (5.3.1)
WordPress Plugin User Login Log Cross-Site Scripting (2.2.2)