CVE-2026-4563 MacCMS Member Order Detail User.php order_info authorization
Attackers can bypass authorization checks in MacCMS to access other users' order details remotely.
- 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-2026-4563?
CVE-2026-4563 is a medium-severity authentication bypass vulnerability in MacCMS, published on 22 Mar 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 MacCMS up to 2025.1000.4052. This vulnerability affects the function order_info of the file application/index/controller/User.php of the component Member Order Detail Interface. This manipulation of the argument order_id causes authorization bypass. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks.
Which versions are affected by CVE-2026-4563?
How do I fix CVE-2026-4563?
No fix has been published for CVE-2026-4563 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-4563 being exploited?
There is no known exploitation of CVE-2026-4563 in the wild and no public exploit code.
Sources
Also known as GHSA-3f5x-pcjq-3pww.