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CVE-2026-73426

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-73426

Severity

4.6

Medium

CVSS V3

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Summary

Trix: Stored XSS vulnerability through serialized attributes

Description

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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