description: There is a possible XSS vulnerability in all rails-html-sanitizer gem versions below 1.0.4 for Ruby. The gem allows non-whitelisted attributes to be present in sanitized output when input with specially-crafted HTML fragments, and these attributes can lead to an XSS attack on target applications. This issue is similar to CVE-2018-8048 in Loofah. All users running an affected release should either upgrade or use one of the workarounds immediately.
problem types: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (CWE-79)
affected:
{
product: rails-html-sanitizer
vendor: Rails
versions:
status: affected, version: <= 1.0.3
}