GreenBrowser before version 1.2 has a vulnerability where apps that rely on URL Parsing to verify that a given URL is pointing to a trust server may be susceptible to many different ways to get URL parsing and verification wrong, which allows an attacker to circumvent the access control. This problem has been patched in version 1.2.

Double free vulnerability in GreenBrowser before 6.0.1002, when the keyword search bar (F6) is activated, allows remote attackers to execute arbitrary code via a crafted iframe.

Multiple cross-site scripting (XSS) vulnerabilities in GreenBrowser 6.1.0117 and 6.1.0216 allow remote attackers to inject arbitrary web script or HTML via (1) the URI in an about: page or (2) the last visited URL in the LastVisitWriteEn function in function.js.

Cross-domain vulnerability in GreenBrowser 3.4.0622 allows remote attackers to access restricted information from other domains via an object tag with a data parameter that references a link on the attacker's originating site that specifies a Location HTTP header that references the target site, which then makes that content available through the outerHTML attribute of the object, a similar vulnerability to CVE-2006-3280.