Internet Bug Bounty · Report #2520694

Possible XSS Vulnerability in Action Controller

Validstatus

lowseverity

$1,068bounty

32upvotes

25 Sept 2024disclosed

Summary

Possible XSS Vulnerability in Action Controller

There is a possible XSS vulnerability when using the translation helpers (translate, t, etc) in Action Controller. This vulnerability has been assigned the CVE identifier CVE-2024-26143.

Versions Affected: >= 7.0.0. Not affected: < 7.0.0 Fixed Versions: 7.1.3.1, 7.0.8.1

Impact Applications using translation methods like translate, or t on a controller, with a key ending in “_html”, a :default key which contains untrusted user input, and the resulting string is used in a view, may be susceptible to an XSS vulnerability.

All users running an affected release should either upgrade or use one of the workarounds immediately.

Credits Thanks to ooooooo_q for the patch and fix!

Full Security Advisory: https://discuss.rubyonrails.org/t/possible-xss-vulnerability-in-action-controller/84947

How it was found

I made a report and patch at https://hackerone.com/reports/2303609

https://discuss.rubyonrails.org/t/possible-xss-vulnerability-in-action-controller/84947

There is a possible XSS vulnerability when using the translation helpers (translate, t, etc) in Action Controller. This vulnerability has been assigned the CVE identifier CVE-2024-26143.

Impact

Applications using translation methods like translate, or t on a controller, with a key ending in “_html”, a :default key which contains untrusted user input, and the resulting string is used in a view, may be susceptible to an XSS vulnerability.

This report was disclosed publicly on HackerOne and belongs to its author and the program. See the original