This is a critical security release. All JCE Pro users should update immediately.
A vulnerability has been identified that allowed unauthenticated users to upload editor profiles, which could be exploited to upload arbitrary files to the server. The issue has been fixed in this release. All versions of JCE Pro prior to 2.9.99.5 are affected.
All JCE users should update to 2.9.99.5 as soon as possible via the Joomla Update Manager or the JCE Downloads area.
Please Note: JCE Pro is compatible with Joomla 3.10.x, 4.2+, 5 and 6, and does not require the Backwards Compatibility plugin for Joomla 5 or Joomla 6.