CVE-2026-126744 json
This module renders Layout Builder forms inside an iframe in a modal dialog, using the admin theme.
published 16h ago modified 16h ago also DRUPAL-CONTRIB-2026-335
- cvss
- —
- not scored
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- —
- no EPSS score yet
- public exploits
- 0
- none known
Summary
This module renders Layout Builder forms inside an iframe in a modal dialog, using the admin theme.
The module provides its own Ajax command to open the iframe dialog. This command does not sanitize the dialog options the same way Drupal core does since [SA-CORE-2026-001](https://www.drupal.org/sa-core-2026-001), which can lead to a cross-site scripting (XSS) vulnerability.
This vulnerability is mitigated by the fact that an attacker must be able to control the Ajax response, or be able to add markup with specific attributes to a page.
Patch / fix
- packagist drupal/layout_builder_iframe_modal 1.3.9
Is CVE-2026-126744 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerAffected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| packagist | drupal/layout_builder_iframe_modal | <1.3.9 |
1.3.9 |
References
Sources
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.