RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Cross Site Scripting (XSS) vulnerability in gem server display of homepage attribute that can result in XSS. This attack appear to be exploitable via the victim must browse to a malicious gem on a vulnerable gem server. This vulnerability appears to have been fixed in 2.7.6.
{
"versions": [
{
"introduced": "0"
},
{
"last_affected": "2.2.9"
},
{
"introduced": "0"
},
{
"last_affected": "2.3.6"
},
{
"introduced": "0"
},
{
"last_affected": "2.4.3"
},
{
"introduced": "0"
},
{
"last_affected": "2.5.0"
}
]
}