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bdu:2025-04578

certfr-2024-avi-1034 — De multiples vulnérabilités ont été découvertes dans Ruby on Rails. Elles permettent à un attaquant de provoquer une in…

certfr-2024-avi-1034

EUVD-2026-205562

fkie_cve-2024-53986

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0. A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags where the "math" and "style" elements are both explicitly allowed. This vulnerability is fixed in 1.6.1.

GHSA-638j-pmjw-jq48 — rails-html-sanitizer has XSS vulnerability with certain configurations

Affected: RubyGems: rails-html-sanitizer

## Summary

There is a possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer 1.6.0 when used with Rails >= 7.1.0.

* Versions affected: 1.6.0 * Not affected: < 1.6.0 * Fixed versions: 1.6.1

## Impact

A possible XSS vulnerability with certain configurations of Rails::HTML::Sanitizer may allow an attacker to inject content if HTML5 sanitization is enabled and the application developer has overridden the sanitizer's allowed tags in the following way:

- the "math" and "style" elements are both explicitly allowed

Code is only impacted if Rails is configured to use HTML5 sanitization, please see documentation for [`config.action_view.sanitizer_vendor`](https://guides.rubyonrails.org/configuring.html#config-action-view-sanitizer-vendor) and [`config.action_text.sanitizer_vendor`](https://guides.rubyonrails.org/configuring.html#config-action-text-sanitizer-vendor) for more information on these configuration options.

The default configuration is to disallow these elements. Code is only impacted if allowed tags are being overridden. Applications may be doing this in a few different ways:

1. using application configuration to configure Action View sanitizers' allowed tags:

```ruby # In config/application.rb config.action_view.sanitized_allowed_tags = ["math", "style"] ```

see https://guides.rubyonrails.org/configuring.html#configuring-action-view

2. using a `:tags` option to the Action View helper `sanitize`:

``` <%= sanitize @comment.…

openSUSE-SU-2026:10569-1 — ruby4.0-rubygem-rails-html-sanitizer-1.7.0-1.1 on GA media

ruby4.0-rubygem-rails-html-sanitizer-1.7.0-1.1 on GA media

UBUNTU-CVE-2024-53986

Affected: Ubuntu:16.04:LTS: ruby-rails-html-sanitizer, Ubuntu:18.04:LTS: ruby-rails-html-sanitizer, Ubuntu:20.04:LTS: ruby-rails-html-sanitizer, Ubuntu:22.04:LTS: ruby-rails-html-sanitizer, Ubuntu:24.04:LTS: ruby-rails-html-sanitizer, Ubuntu:25.10: ruby-rails-html-sanitizer, Ubuntu:26.04:LTS: ruby-rails-html-sanitizer

WID-SEC-W-2024-3581 — Ruby on Rails: Mehrere Schwachstellen ermöglichen Cross-Site Scripting

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen im Ruby on Rails html-sanitizer ausnutzen, um einen Cross-Site Scripting Angriff durchzuführen.