Bug 2517908 (CVE-2026-73426) - CVE-2026-73426 action_text-trix: trix: Trix: Cross-site scripting via serialized attributes bypass
Summary: CVE-2026-73426 action_text-trix: trix: Trix: Cross-site scripting via seriali...
Keywords:
Status: NEW
Alias: CVE-2026-73426
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-18 14:35 UTC by OSIDB Bzimport
Modified: 2026-09-24 16:25 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2026-08-18 14:35:18 UTC 
Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.17, Trix is vulnerable to cross-site scripting when a data-trix-serialized-attributes attribute bypasses the DOMPurify sanitizer. An attacker can craft HTML containing a data-trix-serialized-attributes attribute with a malicious payload that, when rendered, executes arbitrary JavaScript in the user's session and may perform unauthorized actions or disclose sensitive information. This issue is fixed in version 2.1.17.
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