{"id":"DRUPAL-CONTRIB-2021-026","aliases":[],"status":"published","description":"The Webform module uses the [CKEditor](https://github.com/ckeditor/ckeditor4), library for WYSIWYG editing. CKEditor has released [a security update that impacts Webform](https://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/).\n\nAn attacker that can create or edit content (even without access to CKEditor themselves) may be able to exploit one or more Cross-Site Scripting (XSS) vulnerabilities to target users with access to the WYSIWYG CKEditor, including site admins with privileged access.\n\nFor more information, see [CKEditor's announcement of the release](https://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/).","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-08-25T15:27:54Z","modified":"2026-09-10T03:46:17Z","fixes":[{"ecosystem":"Packagist:https://packages.drupal.org/8","package":"drupal/webform","fixed_in":["5.28.0","6.0.5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Packagist:https://packages.drupal.org/8","package":"drupal/webform","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.28.0"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.0.0"},{"fixed":"6.0.5"}]}]}],"references":[{"url":"https://www.drupal.org/sa-contrib-2021-026","tags":["web"]}],"sources":{"osv":[{"id":"DRUPAL-CONTRIB-2021-026","description":"The Webform module uses the [CKEditor](https://github.com/ckeditor/ckeditor4), library for WYSIWYG editing. CKEditor has released [a security update that impacts Webform](https://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/).\n\nAn attacker that can create or edit content (even without access to CKEditor themselves) may be able to exploit one or more Cross-Site Scripting (XSS) vulnerabilities to target users with access to the WYSIWYG CKEditor, including site admins with privileged access.\n\nFor more information, see [CKEditor's announcement of the release](https://ckeditor.com/blog/ckeditor-4.16.2-with-browser-improvements-and-security-fixes/).","status":"published","published":"2021-08-25T15:27:54Z","modified":"2026-09-10T03:46:17.357572537Z","updated_at":"2026-11-02T15:46:13.584509Z"}]}}