Mozilla : Security Vulnerabilities, CVEs, Published In 2005 (XSS)

The install function in Firefox 1.0.3 allows remote web sites on the browser's whitelist, such as update.mozilla.org or addon.mozilla.org, to execute arbitrary Javascript with chrome privileges, leading to arbitrary code execution on the system when combined with vulnerabilities such as CVE-2005-1476, as demonstrated using a javascript: URL as the package icon and a cross-site scripting (XSS) attack on a vulnerable whitelist site.

Firefox before 1.0.3 and Mozilla Suite before 1.7.7 allows remote attackers to execute arbitrary script in other domains via a setter function for a variable in the target domain, which is executed when the user visits that domain, aka "Cross-site scripting through global scope pollution."

Cross-site scripting (XSS) vulnerability in Bugzilla before 2.18, including 2.16.x before 2.16.11, allows remote attackers to inject arbitrary HTML and web script via forced error messages, as demonstrated using the action parameter.