CVE-2026-77034: Joomlaeventmanager.net Jem - Joomla Event Manager Extension For Joomla

Medium severity, CVSS 6.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Joomla Extension - joomlaeventmanager.net - Unauthenticated article overwrite and force-publish in Joomla Event Manager < 5.0.1 - Any visitor holding their own session token can republish and overwrite an article associated with an event.

Affected products

• Joomlaeventmanager.net Jem - Joomla Event Manager Extension For Joomla: version 1.0.0-5.0.0 only

Published 2026-08-27. Last modified 2026-08-28.