CVE-2026-77035

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

State: Published
Severity: 5.1 Medium
Published: Aug 27, 2026
Updated: Aug 28, 2026
Reserved: Aug 20, 2026

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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.

Scores

CVSS	Score	Vector	Source
4.0	5.1 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N	Joomla

Weaknesses

CWE-639 Authorization Bypass Through User-Controlled Key

Affected Products

Product	Versions
JEM - Joomla Event Manager extension for Joomlajoomlaeventmanager.net	1.0.0-5.0.0Affected

References

https://www.joomlaeventmanager.net/product

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