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OpenAdvisories
Medium · 5.1 CVE-2026-77035 EUVD-2026-66863GHSA-chh3-v86w-gm49

Joomla Extension - joomlaeventmanager.net - Cross-user event and venue takeover through forged form fields in Joomla Event Manager < 5.0.1

Published Aug 27, 2026 · Updated Aug 28, 2026 · Assigned by Joomla

Description

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.

Affected products

VendorProductAffectedFixed
joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla 1.0.0-5.0.0 —

References