CVE-2026-77034
Medium
Description
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.
SeverityMedium
CVSS6.9
Exploit probability—
ProductJEM - Joomla Event Manager extension for Joomla
PublishedAug 27, 2026
First seenAug 27, 2026
Weakness typeCWE-284Improper access control
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| joomlaeventmanager.net JEM - Joomla Event Manager extension for Joomla | 1.0.0-5.0.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.