ADVISORIES
GEM
SEVERITY
CVSS v3.x: 6.4 (Medium)
PATCHED VERSIONS
- >= 1.2.1
DESCRIPTION
Impact
There was a vulnerability in versions of Kaminari that would allow an attacker to inject arbitrary code into pages with pagination links.
For example, an attacker could craft pagination links that link to other domain or host: https://example.com/posts?page=4&original_script_name=https://another-host.example.com
In addition, an attacker could also craft pagination links that include JavaScript code that runs when a user clicks the link: https://example.com/posts?page=4&original_script_name=javascript:alert(42)%3b//
Releases
The 1.2.1 gem including the patch has already been released. All past released versions are affected by this vulnerability.
Workarounds
Application developers who can't update the gem can workaround by overriding the PARAM_KEY_EXCEPT_LIST constant.
module Kaminari::Helpers
PARAM_KEY_EXCEPT_LIST = [:authenticity_token, :commit, :utf8, :_method, :script_name, :original_script_name].freeze
end