Cross-site Scripting (XSS) Affecting ruby-rails-html-sanitizer package, versions *


Severity

Recommended
low

Based on Debian security rating

    Threat Intelligence

    EPSS
    0.08% (35th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk ID SNYK-DEBIAN9-RUBYRAILSHTMLSANITIZER-365088
  • published 30 Mar 2018
  • disclosed 30 Mar 2018

How to fix?

There is no fixed version for Debian:9 ruby-rails-html-sanitizer.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-rails-html-sanitizer package and not the ruby-rails-html-sanitizer package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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.

CVSS Scores

version 3.1
Expand this section

NVD

6.1 medium
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    Required
  • Scope (S)
    Changed
  • Confidentiality (C)
    Low
  • Integrity (I)
    Low
  • Availability (A)
    None