Improper input validation in Mozilla Firefox

CVE-2009-1307

The view-source: URI implementation in Mozilla Firefox before 3.0.9, Thunderbird, and SeaMonkey does not properly implement the Same Origin Policy, which allows remote attackers to (1) bypass crossdomain.xml restrictions and connect to arbitrary web sites via a Flash file; (2) read, create, or modify Local Shared Objects via a Flash file; or (3) bypass unspecified restrictions and render content via vectors involving a jar: URI.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.022 (80.5th percentile) — read the EPSS interpretation.