Cross-site Scripting (XSS) Affecting ruby-rails-html-sanitizer package, versions <1.4.4-1


Severity

Recommended
0.0
medium
0
10

Snyk's Security Team recommends NVD's CVSS assessment

    Threat Intelligence

    EPSS
    0.11% (45th percentile)

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  • Snyk ID SNYK-DEBIANUNSTABLE-RUBYRAILSHTMLSANITIZER-3172423
  • published 15 Dec 2022
  • disclosed 14 Dec 2022

How to fix?

Upgrade Debian:unstable ruby-rails-html-sanitizer to version 1.4.4-1 or higher.

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:unstable relevant fixed versions and status.

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. Prior to version 1.4.4, there is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer due to an incomplete fix of CVE-2022-32209. Rails::Html::Sanitizer may allow an attacker to inject content if the application developer has overridden the sanitizer's allowed tags to allow both "select" and "style" elements. Code is only impacted if allowed tags are being overridden. This issue is patched in version 1.4.4. All users overriding the allowed tags to include both "select" and "style" should either upgrade or use this workaround: Remove either "select" or "style" from the overridden allowed tags. NOTE: Code is not impacted if allowed tags are overridden using either the :tags option to the Action View helper method sanitize or the :tags option to the instance method SafeListSanitizer#sanitize.

CVSS Scores

version 3.1
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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
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Red Hat

6.1 medium
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SUSE

6.1 medium