GHSA-r5jw-62xg-j433
MEDIUMGHSA-r5jw-62xg-j433 is a medium-severity (CVSS 6.4) Cross-site Scripting (XSS) vulnerability in kaminari. O3 Security confirms whether GHSA-r5jw-62xg-j433 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Cross-Site Scripting in Kaminari
Blast Radius
kaminariReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects RubyGems packages — download data is not available via public APIs for these ecosystems.
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.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 💎RubyGems | kaminari | all versions | 1.2.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for kaminari. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update kaminari to 1.2.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-r5jw-62xg-j433 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-r5jw-62xg-j433 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-r5jw-62xg-j433. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-r5jw-62xg-j433 in your dependencies?
O3 detects GHSA-r5jw-62xg-j433 across RubyGems dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.