Mozilla Firefox before 2.0.0.8 and SeaMonkey before 1.1.5 do not properly implement JavaScript onUnload handlers, which allows remote attackers to run certain JavaScript code and access the location DOM hierarchy in the context of the next web site that is visited by a client.
Mozilla Firefox 2.0.0.1 and earlier does not prompt users before saving bookmarklets, which allows remote attackers to bypass the same-domain policy by tricking a user into saving a bookmarklet with a data: scheme, which is executed in the context of the last visited web page.
Mozilla based browsers, including Firefox before 1.5.0.10 and 2.x before 2.0.0.2, and SeaMonkey before 1.0.8, allow remote attackers to bypass the same origin policy, steal cookies, and conduct other attacks by writing a URI with a null byte to the hostname (location.hostname) DOM property, due to interactions with DNS resolver code.
Cross-site scripting (XSS) vulnerability in the (1) Sage before 1.3.10, and (2) Sage++ extensions for Firefox, allows remote attackers to inject arbitrary web script or HTML via a "<SCRIPT/=''SRC='" sequence in an RSS feed, a different vulnerability than CVE-2006-4712.
Multiple unspecified vulnerabilities in the layout engine for Mozilla Firefox 2.x before 2.0.0.1, 1.5.x before 1.5.0.9, Thunderbird before 1.5.0.9, and SeaMonkey before 1.0.7 allow remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via unknown attack vectors.
The (1) Password Manager in Mozilla Firefox 2.0, and 1.5.0.8 and earlier; and the (2) Passcard Manager in Netscape 8.1.2 and possibly other versions, do not properly verify that an ACTION URL in a FORM element containing a password INPUT element matches the web site for which the user stored a password, which allows remote attackers to obtain passwords via a password INPUT element on a different web page located on the web site intended for this password.
Stack-based buffer overflow in Mozilla Firefox allows remote attackers to execute arbitrary code via unspecified vectors involving JavaScript. NOTE: the vendor and original researchers have released a follow-up comment disputing the severity of this issue, in which the researcher states that "we mentioned that there was a previously known Firefox vulnerability that could result in a stack overflow ending up in remote code execution. However, the code we presented did not in fact do this... I have not succeeded in making this code do anything more than cause a crash and eat up system resources"
Multiple unspecified vulnerabilities in Mozilla Firefox have unspecified vectors and impact, as claimed during ToorCon 2006. NOTE: the vendor and original researchers have released a follow-up comment disputing this issue, in which one researcher states that "I have no undisclosed Firefox vulnerabilities. The person who was speaking with me made this claim, and I honestly have no idea if he has them or not.
Mozilla Firefox before 1.5.0.7 and SeaMonkey before 1.0.5 allows remote attackers to bypass the security model and inject content into the sub-frame of another site via targetWindow.frames[n].document.open(), which facilitates spoofing and other attacks.
The popup blocker in Mozilla Firefox before 1.5.0.7 opens the "blocked popups" display in the context of the Location bar instead of the subframe from which the popup originated, which might make it easier for remote user-assisted attackers to conduct cross-site scripting (XSS) attacks.