CVE-2008-1238: Mozilla Firefox

Medium severity, CVSS 5.0. EPSS: 2.4% chance of exploitation in the next 30 days.

Mozilla Firefox before 2.0.0.13 and SeaMonkey before 1.1.9, when generating the HTTP Referer header, does not list the entire URL when it contains Basic Authentication credentials without a username, which makes it easier for remote attackers to bypass application protection mechanisms that rely on Referer headers, such as with some Cross-Site Request Forgery (CSRF) mechanisms.

Affected products

• Mozilla Firefox: up to and including 2.0.0.12
• Mozilla Seamonkey: up to and including 1.1.8

Published 2008-03-27. Last modified 2026-06-16.