CVE-2026-78971 Code injection in n/a

Medium 4.6 Published Updated

Attackers can execute arbitrary commands by installing malicious plugins in Halo CMS, leading to full process compromise.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-78971?

CVE-2026-78971 is a medium-severity code injection vulnerability in n/a, published on 8 Sep 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

In Halo <= 2.25.4, the plugin management feature allows users to install/update malicious plugins, which could let attackers execute any command with Halo process permissions.

Weakness: CWE-94

Which versions are affected by CVE-2026-78971?

How do I fix CVE-2026-78971?

No fix has been published for CVE-2026-78971 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-78971 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-78971 exists.

Sources

Also known as GHSA-46pq-cq8c-c7p9.

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