| Package | Affected versions | Patched versions |
|---|---|---|
| rails-html-sanitizer | < 1.0.4 | 1.0.4 |
| html sanitizer | ≤ 1.0.3 |
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.
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