r/joomla • u/mySitesGuru • 3h ago
Administration/Technical Gridbox 2.20.4.2 Joomla SQL Injection Fixes
mysites.guruBalbooa released Gridbox 2.20.4.2 today, fixing two SQL injection flaws in the page builder that need no login. The Joomla CNA scored both CVE-2026-102788 and CVE-2026-102789 at CVSS 4.0 9.3 Critical, with releases 1.0.0 to 2.20.4.1 affected.
The first is in the sort order of store and category post lists: the value from the page URL went straight into the ORDER BY of the query. 2.20.4.2 now checks it against a whitelist. The second is a page editor task that loads blog posts and had no permission check at all, so any visitor could call it and reach the same query.
Both let an anonymous visitor read the database, and on Joomla that means the user table and its password hashes. No public exploitation has been reported yet.
What to do: update every Gridbox site to 2.20.4.2, including ones you moved to 2.20.4.1 last week. If a site sat on an affected version, check for admin accounts you didn't create and consider resetting admin passwords. Sites still on Joomla 3 top out at Gridbox 2.17.0.2 with no fix.
The full post has the version table, why ORDER BY injection keeps showing up in Joomla extensions this year, and how mySites.guru flags affected sites.