CVE-2026-77026 Joomla Extension - tassos.gr - Client-controlled validation bypass in Convert Forms extension < 5.2.5
Unauthenticated attackers can view form submissions due to missing access control in the Convert Forms extension for Joomla.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77026?
CVE-2026-77026 is a medium-severity missing authorization vulnerability in tassos.gr Convert Forms extension for Joomla, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Joomla Extension - tassos.gr - Client-controlled validation bypass in Convert Forms extension < 5.2.5 - The front-end Submissions view did not enforce access control. An unauthenticated visitor could therefore list a form's submissions.
Weakness: CWE-602
Which versions are affected by CVE-2026-77026?
How do I fix CVE-2026-77026?
No fix has been published for CVE-2026-77026 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-2026-77026 being exploited?
There is no known exploitation of CVE-2026-77026 in the wild and no public exploit code.
Sources
Also known as GHSA-cv6m-pr7w-r69x.