CVE-2026-12134 Missing authorization in JoomSport – for Sports: Team & League, Football, Hockey & more

Medium 4.3 Published Updated

Authenticated subscribers can create or modify arbitrary season groups in JoomSport due to missing authorization checks on AJAX actions.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-12134?

CVE-2026-12134 is a medium-severity missing authorization vulnerability in beardev JoomSport – for Sports: Team & League, Football, Hockey & more, published on 2 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The JoomSport – for Sports: Team & League, Football, Hockey & more plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.7.8. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with subscriber-level access and above, to create arbitrary season groups or modify existing group names, participants, and round-type options. Exploitation requires obtaining the joomsportajaxnonce, which is exposed on frontend pages that render a JoomSport shortcode.

Weakness: CWE-862

Which versions are affected by CVE-2026-12134?

How do I fix CVE-2026-12134?

No fix has been published for CVE-2026-12134 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-12134 being exploited?

There is no known exploitation of CVE-2026-12134 in the wild and no public exploit code.

Sources

Also known as GHSA-h398-fp2w-9mpg.

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