GitBook through 2.6.9 allows Cross-site Scripting via javascript inclusion in a local .md file.
{ "nvd_published_at": "2019-12-05T03:15:00Z", "cwe_ids": [ "CWE-79" ], "severity": "MODERATE", "github_reviewed": true, "github_reviewed_at": "2024-04-22T23:23:17Z" }