4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
47.6%
There is a possible XSS vulnerability with certain configurations of Rails::Html::Sanitizer.
This vulnerability has been assigned the CVE identifier CVE-2022-32209.
Versions Affected: ALL
Not affected: NONE
Fixed Versions: v1.4.3
A possible XSS vulnerability with certain configurations of 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 may be done via
application configuration:
# In config/application.rb
config.action_view.sanitized_allowed_tags = ["select", "style"]
see https://guides.rubyonrails.org/configuring.html#configuring-action-view
Or it may be done with a :tags
option to the Action View helper sanitize
:
<%= sanitize @comment.body, tags: ["select", "style"] %>
see https://api.rubyonrails.org/classes/ActionView/Helpers/SanitizeHelper.html#method-i-sanitize
Or it may be done with Rails::Html::SafeListSanitizer directly:
# class-level option
Rails::Html::SafeListSanitizer.allowed_tags = ["select", "style"]
or
# instance-level option
Rails::Html::SafeListSanitizer.new.sanitize(@article.body, tags: ["select", "style"])
All users overriding the allowed tags by any of the above mechanisms to include
both “select” and “style” should either upgrade or use one of the workarounds immediately.
Remove either select
or style
from the overridden allowed tags.
CPE | Name | Operator | Version |
---|---|---|---|
rails-html-sanitizer | lt | 1.4.3 |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
0.001 Low
EPSS
Percentile
47.6%