CVE-2026-73426
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.
- CVSS 3.1
- 4.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N - EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-25)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-qmpg-8xg6-ph5q | RubyGems | action_text-trix | <2.1.17 | 2.1.17 |
| GHSA-qmpg-8xg6-ph5q | npm | trix | <2.1.17 | 2.1.17 |
References
- https://github.com/basecamp/trix/commit/3229c29c771ded4d247ed79b2ccd2cd05c4e74b4
- https://github.com/basecamp/trix/commit/53197ab5a142e6b0b76127cb790726b274eaf1bc
- https://github.com/basecamp/trix/pull/1282
- https://github.com/basecamp/trix/releases/tag/v2.1.17
- https://github.com/basecamp/trix/security/advisories/GHSA-qmpg-8xg6-ph5q