CVE-2026-76610 Joomla Extension - yootheme.com - Unauthenticated tag modifications in Zoo < 4.1.65

Medium 6.9 Published Updated

Unauthenticated attackers can modify tags in the Zoo extension due to missing access controls in the comment controller.

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

What is CVE-2026-76610?

CVE-2026-76610 is a medium-severity missing authorization vulnerability in yootheme.com Zoo extension for Joomla, published on 20 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Joomla Extension - yootheme.com - Unauthenticated tag modifications in Zoo < 4.1.65 - The comment controller endpoint lacked ACL checks, allowing unauthorized tag modifications by unauthenticated users.

Weakness: CWE-352, CWE-284

Which versions are affected by CVE-2026-76610?

How do I fix CVE-2026-76610?

No fix has been published for CVE-2026-76610 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-2026-76610 being exploited?

There is no known exploitation of CVE-2026-76610 in the wild and no public exploit code.

Sources

Also known as GHSA-5qx9-5vj6-wf25.

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