CVE-2026-116687

low

Description

CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General HTML Support is enabled and specifically configured to allow object content. Processing that content can execute attacker-controlled JavaScript in a browser context isolated from the origin of the application embedding the editor. This issue is fixed in versions 47.7.4 and 48.5.1.

References

https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq

https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1

https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4

https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423

https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-111365

Details

Source: Mitre, NVD

Published: 2026-10-27

Updated: 2026-10-27

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 3.1

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

Severity: Low