SB20260428198 - Cross-site scripting in Trix

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: N/A)

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary JavaScript code in the user's session.

The vulnerability exists due to cross-site scripting in the data-trix-serialized-attributes attribute handling when rendering crafted HTML content. A remote user can supply HTML containing a malicious data-trix-serialized-attributes attribute to execute arbitrary JavaScript code in the user's session.

User interaction is required when the content is rendered.

Remediation

Install update from vendor's website.

References

• https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q
• https://github.com/advisories/GHSA-qmpg-8xg6-ph5q