Bugzilla 2.0 < 4.0.12 / 4.2.8 / 4.4.3 / 4.5.3 Character Spoofing

According to its banner, the version of Bugzilla installed on the remote host is after version 2.0 but prior to 4.0.12, 4.1.1 prior to 4.2.8, 4.3.1 prior to 4.4.3, or 4.5.1 prior to 4.5.3. It is, therefore, affected by a character spoofing vulnerability. The vulnerability exists in the bug commen...