{"id":"GHSA-j386-3444-qgwg","summary":"Trix allows Cross-site Scripting via `javascript:` url in a link","details":"The Trix editor, versions prior to 2.1.11, is vulnerable to XSS when pasting malicious code in the link field.\n\n### Impact\n\nAn attacker could trick the user to copy&paste a malicious `javascript:` URL as a link that would execute arbitrary JavaScript code within the context of the user's session, potentially leading to unauthorized actions being performed or sensitive information being disclosed.\n\nSee https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8\n\n### Patches\n\nUpdate Recommendation: Users should upgrade to Trix editor version 2.1.12 or later.\n\n### Workarounds\n\nThis is not really a workaround but something that should be considered in addition to upgrading to the patched version. If affected users can disallow browsers that don't support a Content Security Policy, then this would be an effective workaround for this and all XSS vulnerabilities. Set CSP policies such as script-src 'self' to ensure that only scripts hosted on the same origin are executed, and explicitly prohibit inline scripts using script-src-elem.\n\n### References\n\nhttps://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8\n\n### Credits\n\nThis vulnerability was reported by Hackerone researcher https://hackerone.com/lio346?type=user","aliases":["CVE-2025-21610"],"modified":"2025-01-03T19:26:14Z","published":"2025-01-03T16:29:58Z","database_specific":{"github_reviewed_at":"2025-01-03T16:29:58Z","nvd_published_at":"2025-01-03T17:15:09Z","cwe_ids":["CWE-79"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"WEB","url":"https://github.com/basecamp/trix/security/advisories/GHSA-j386-3444-qgwg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21610"},{"type":"WEB","url":"https://github.com/basecamp/trix/commit/180c8d337f18e1569cea6ef29b4d03ffff5b5faa"},{"type":"WEB","url":"https://github.com/basecamp/trix/commit/c4f0d6f80654603932af6685694f694e96593b93"},{"type":"WEB","url":"https://gist.github.com/th4s1s/3921fd9c3e324ad9a3e0d846166e3eb8"},{"type":"PACKAGE","url":"https://github.com/basecamp/trix"}],"affected":[{"package":{"name":"trix","ecosystem":"npm","purl":"pkg:npm/trix"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.1.12"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/01/GHSA-j386-3444-qgwg/GHSA-j386-3444-qgwg.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N"}]}