CVE-2026-78076 Missing authorization in Helix Ultimate extension for Joomla
Authenticated users can modify arbitrary menu item layouts in Helix Ultimate due to missing authorization checks on the save-megamenu-settings endpoint.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-78076?
CVE-2026-78076 is a medium-severity missing authorization vulnerability in joomshaper.com Helix Ultimate extension for Joomla, published on 31 Aug 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
Joomla Extension - joomshaper.com - Broken Access Control & Missing Authorization in MegaMenu Settings in Helix Ultimate < 2.2.10 - The AJAX endpoint save-megamenu-settings failed to enforce item-level and menu-level edit permissions (core.edit on com_menus.item.{id} or core.admin). An authenticated user could submit modified layout parameters for arbitrary menu items without proper authorization.
Weakness: CWE-284
Which versions are affected by CVE-2026-78076?
How do I fix CVE-2026-78076?
No fix has been published for CVE-2026-78076 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-78076 being exploited?
There is no known exploitation of CVE-2026-78076 in the wild and no public exploit code.
Sources
Also known as GHSA-672g-vmcw-4mjj.