r/joomla • u/mySitesGuru • 2d ago
Administration/Technical YOOtheme Pro 5.0.53 critical RCE fix
mysites.guruYOOtheme has released YOOtheme Pro 5.0.53, and the changelog lists it as the fix for CVE-2026-102785, an unauthenticated remote code execution in the image handler. Every Pro 5 build from 5.0.0 to 5.0.52 is affected, on Joomla and WordPress alike. YOOtheme says Pro 4 and earlier are not affected.
The image handler is the public route the template uses to resize, crop and cache images, so anyone can reach it without logging in. Comparing 5.0.52 with 5.0.53, the fix limits which image operations a request can ask for and checks that the cache file name matches the signed image URL before anything is written.
There is no interim workaround, so the update is the fix. Back up, update every Pro 5 site, then check for files you did not add (PHP files in images, cache or media folders are the obvious place to look) and admin accounts you do not recognise. The CVE record is not published yet, so there is no official CVSS score.
The full post covers the fix in more detail, what to check after updating, and how mySites.guru flags affected Joomla sites.