CVE-2026-4562 MacCMS Timming API Endpoint Timming.php weak authentication
Remote attackers can bypass authentication on the MacCMS Timming API endpoint due to missing authorization checks.
- 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-2026-4562?
CVE-2026-4562 is a medium-severity missing authorization vulnerability in MacCMS, published on 22 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security flaw has been discovered in MacCMS 2025.1000.4052. This affects an unknown part of the file application/api/controller/Timming.php of the component Timming API Endpoint. The manipulation results in missing authentication. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.
Which versions are affected by CVE-2026-4562?
How do I fix CVE-2026-4562?
No fix has been published for CVE-2026-4562 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-2026-4562 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-4562 exists.
Sources
Also known as GHSA-jqqr-rw2r-w5cx.