CVE-2025-13980: Cksource Ckeditor 5 Premium Features

Medium severity, CVSS 5.3. EPSS: 0.3% chance of exploitation in the next 30 days.

Authentication Bypass Using an Alternate Path or Channel vulnerability in Drupal CKEditor 5 Premium Features allows Functionality Bypass.This issue affects CKEditor 5 Premium Features: from 0.0.0 before 1.2.10, from 1.3.0 before 1.3.6, from 1.4.0 before 1.4.3, from 1.5.0 before 1.5.1, from 1.6.0 before 1.6.4.

Affected products

• Cksource Ckeditor 5 Premium Features: before 1.2.10 (fixed in 1.2.10); from 1.3.0, before 1.3.6 (fixed in 1.3.6); from 1.4.0, before 1.4.3 (fixed in 1.4.3); from 1.6.0, before 1.6.4 (fixed in 1.6.4); version 1.5.0 only

Published 2026-01-28. Last modified 2026-06-17.