CVE-2026-72546 Attendize Attendize - Insecure Direct Object Reference
Authenticated event organizers can inject attendees and orders into other accounts' events due to missing authorization checks.
- 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-2026-72546?
CVE-2026-72546 is a high-severity missing authorization vulnerability in Attendize, published on 11 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An insecure direct object reference vulnerability in Attendize through commit 9289acb allows any authenticated event organiser to inject attendees and orders into events belonging to other accounts via the postInviteAttendee endpoint. The endpoint loads the target event by ID without scoping the query to the authenticated organiser account. An attacker can modify event data and financial records across account boundaries.
Weakness: CWE-639
Which versions are affected by CVE-2026-72546?
How do I fix CVE-2026-72546?
No fix has been published for CVE-2026-72546 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-2026-72546 being exploited?
There is no known exploitation of CVE-2026-72546 in the wild and no public exploit code.
Sources
Also known as GHSA-rvg3-vfj6-mf9f.