A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML/JS code.
{
"nvd_published_at": "2020-12-03T17:15:00Z",
"severity": "MODERATE",
"github_reviewed": true,
"github_reviewed_at": "2021-01-07T21:53:43Z",
"cwe_ids": [
"CWE-79"
]
}