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Mozilla Firefox before 3.0.11, Thunderbird, and SeaMonkey do not check content policy before loading a script file into a XUL document, which allows remote attackers to bypass intended access restrictions via a crafted HTML document, as demonstrated by a "web bug" in an e-mail message, or web script or an advertisement in a web page.
June 12, 2009
April 23, 2026
See which npm, PyPI, Go, and Maven packages are affected by CVE-2009-1840
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.