{"id":"CVE-2026-73427","title":"Trix is a what-you-see-is-what-you-get rich text editor for everyday writing","summary":"Trix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to cross-site scripting when a crafted application/x-trix-document JSON payload is dropped into an editor using the fallbac…","severity":"none","cwe":["CWE-79"],"published":"2026-08-12","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:02:22.660","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73427","references":[{"url":"https://github.com/basecamp/trix/commit/9c0a993d9fc2ffe9d56b013b030bc238f9c0557c","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/pull/1293","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/releases/tag/v2.1.18","label":"security-advisories@github.com"},{"url":"https://github.com/basecamp/trix/security/advisories/GHSA-53p3-c7vp-4mcc","label":"security-advisories@github.com"}],"tags":["nvd"],"epss":0.00326,"epssPercentile":0.25944,"ingestedAt":"2026-09-09T21:22:45.532Z","slug":"CVE-2026-73427","body":"## Overview\n\nTrix is a what-you-see-is-what-you-get rich text editor for everyday writing. Prior to 2.1.18, Trix is vulnerable to cross-site scripting when a crafted application/x-trix-document JSON payload is dropped into an editor using the fallback Level0InputController, such as an embedded WebView without Input Events Level 2 support. The StringPiece.fromJSON method trusts href attributes from the JSON payload without sanitization, allowing a draggable element containing a javascript: URI to bypass DOMPurify sanitization and inject executable JavaScript into the DOM. Exploitation requires the victim to drag and drop attacker-controlled content, and server-side HTML sanitization can neutralize the payload on save. This issue is fixed in version 2.1.18.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}