SB20260428197 - Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) in Trix
Published: April 28, 2026
Security Bulletin ID
SB20260428197
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) (CVE-ID: N/A)
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-attachment attribute when rendering attachment payloads as HTML and the content is clicked. A remote user can inject malicious code into a crafted attachment attribute to execute arbitrary JavaScript code in the user's session.
User interaction is required to click the rendered content.
Remediation
Install update from vendor's website.