Aladdin eSafe Gateway versions 2.x allows a remote attacker to circumvent HTML SCRIPT filtering via a special arrangement of HTML tags which includes SCRIPT tags embedded within other SCRIPT tags.

Aladdin eSafe Gateway versions 3.0 and earlier allows a remote attacker to circumvent filtering of SCRIPT tags by embedding the scripts within certain HTML tags including (1) onload in the BODY tag, (2) href in the A tag, (3) the BUTTON tag, (4) the INPUT tag, or (5) any other tag in which scripts can be defined.

Aladdin eSafe Gateway versions 3.0 and earlier allows a remote attacker to circumvent HTML SCRIPT filtering via the UNICODE encoding of SCRIPT tags within the HTML document.

Aladdin Knowlege Systems eSafe Gateway 3.5.126.0 does not check the entire stream of Content Vectoring Protocol (CVP) data, which allows remote attackers to bypass virus protection.