Auth bypass in Joomlaeventmanager.net Jem - Joomla Event Manager Extension For
CVE-2026-77035
Joomla Extension - joomlaeventmanager.net - Cross-user event and venue takeover through forged form fields in Joomla Event Manager < 5.0.1 - A registered user with edit-own rights (the eventowner=1 setting or core.edit.own) can POST another user's record id together with their own id as created_by and take over that record.
Vulnerability class: IDOR (Insecure Direct Object Reference)
EPSS: 0.002 (13.5th percentile) — read the EPSS interpretation.
Affected products
- Joomlaeventmanager.net Jem - Joomla Event Manager Extension For — versions 1.0.0-5.0.0
Weakness classification (CWE)
References
- security@joomla.org (product)