CVE-2026-77145 Broken Access Control in extension "Events 2" (events2)
Users with frontend event management access can modify events belonging to other organizers due to broken access control.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-77145?
CVE-2026-77145 is a high-severity missing authorization vulnerability in TYPO3 Extension "Events 2", published on 25 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The permission check for the frontend management update flow verified a different event than the one the request went on to modify. A user with frontend event management access could therefore modify events belonging to other organizers.
Weakness: CWE-639
Which versions are affected by CVE-2026-77145?
How do I fix CVE-2026-77145?
No fix has been published for CVE-2026-77145 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-2026-77145 being exploited?
There is no known exploitation of CVE-2026-77145 in the wild and no public exploit code.
Sources
Also known as GHSA-4f49-557j-w78c.