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Cross-Site Scripting in Kaminari

Moderate severity GitHub Reviewed Published May 27, 2020 in kaminari/kaminari • Updated May 4, 2023

Package

bundler kaminari (RubyGems)

Affected versions

< 1.2.1

Patched versions

1.2.1

Description

Impact

In Kaminari before 1.2.1, there is a vulnerability that would allow an attacker to inject arbitrary code into pages with pagination links. This has been fixed in 1.2.1.

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

Credits

Thanks to Daniel Mircea for finding the issue and sending a patch via GitHub. Also thanks to Aditya Prakash for reporting the vulnerability.

References

@amatsuda amatsuda published to kaminari/kaminari May 27, 2020
Reviewed May 28, 2020
Published to the GitHub Advisory Database May 28, 2020
Published by the National Vulnerability Database May 28, 2020
Last updated May 4, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:L

EPSS score

0.888%
(83rd percentile)

Weaknesses

CVE ID

CVE-2020-11082

GHSA ID

GHSA-r5jw-62xg-j433

Source code

Credits

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