geminabox (aka Gem in a Box) before 0.13.6 is vulnerable to Cross-site Scripting (XSS), as demonstrated by uploading a gem file that has a crafted gem.homepage value in its .gemspec file.
{
"severity": "MODERATE",
"github_reviewed_at": "2023-03-09T00:35:52Z",
"cwe_ids": [
"CWE-79"
],
"nvd_published_at": "2017-09-25T08:29:00Z",
"github_reviewed": true
}