GitHub Advisoryadvisory · npm, RubyGems
GHSA-g9jg-w8vm-g96v Trix has a stored XSS vulnerability through its attachment attribute
MEDIUM
Official page ↗
- Ecosystem
- npm, RubyGems
- Packages
- trix, action_text-trix
- Severity
- Moderate
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-79
- Reviewed
- 2025-12-31
Affected packages
• npm trix: < 2.1.16 → fixed in 2.1.16
• RubyGems action_text-trix: < 2.1.16 → fixed in 2.1.16
Description
Impact
The Trix editor, in versions prior to 2.1.16, is vulnerable to XSS attacks through attachment payloads.
An attacker could inject malicious code into a data-trix-attachment attribute that, when rendered as HTML and clicked on, could execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.
Patches
Update Recommendation: Users should upgrade to Trix editor version 2.1.16 or later.
Resources
The XSS vulnerability was reported by HackerOne researcher michaelcheers.
Related
Weakness · CWE (1)
- CWE-79 Improper Neutralization of Input During Web Page Generation weakness
References
- https://github.com/basecamp/trix/security/advisories/GHSA-g9jg-w8vm-g96v web
- https://github.com/basecamp/trix/commit/73c20cf03ab2b56c0ef9c9b1aaf63f2de44f4010 web
- https://github.com/basecamp/trix package
- https://github.com/basecamp/trix/releases/tag/v2.1.16 web
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/action_text-trix/GHSA-g9jg-w8vm-g96v.yml web