JavaScript can be injected into an exported bookmarks file by placing JavaScript code into user-supplied tags in saved bookmarks. If the resulting exported HTML file is later opened in a browser this JavaScript will be executed. This could be used in social engineering and self-cross-site-scripting (self-XSS) attacks if users were convinced to add malicious tags to bookmarks, export them, and then open the resulting file. This vulnerability affects Firefox < 57.
[
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "57",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]