CVE-2026-8747 Z-BlogPHP Commend Approval c_system_event.php CheckComment improper authorization

Medium 5.3 Published Updated

Remote attackers can bypass authorization checks in the comment approval handler to modify comment states without proper permissions.

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-2026-8747?

CVE-2026-8747 is a medium-severity missing authorization vulnerability in Z-BlogPHP, published on 17 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A weakness has been identified in Z-BlogPHP 1.7.4.3430. This affects the function CheckComment of the file zb_system/function/c_system_event.php of the component Commend Approval Handler. This manipulation causes improper authorization. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks.

Weakness: CWE-285, CWE-266

Which versions are affected by CVE-2026-8747?

How do I fix CVE-2026-8747?

No fix has been published for CVE-2026-8747 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-2026-8747 being exploited?

There is no known exploitation of CVE-2026-8747 in the wild and no public exploit code.

Sources

Also known as GHSA-g9j8-fr6x-695w.

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