CVE-2008-1545: Microsoft Internet Explorer

Medium severity, CVSS 4.3. EPSS: 11.8% chance of exploitation in the next 30 days.

The setRequestHeader method of the XMLHttpRequest object in Microsoft Internet Explorer 7 does not restrict the dangerous Transfer-Encoding HTTP request header, which allows remote attackers to conduct HTTP request splitting and HTTP request smuggling attacks via a POST containing a "Transfer-Encoding: chunked" header and a request body with an incorrect chunk size.

Affected products

• Microsoft Internet Explorer: version 7.0 only; version 7.0.5730.11 only

Published 2008-03-28. Last modified 2026-06-16.