CVE-2025-15148 CmsEasy Backend Template Management template_admin.php savetemp_action code injection

Medium 5.1 Published 28 Dec 2025 Updated 24 Feb 2026

Remote attackers with backend access can inject arbitrary code via the template management page in CmsEasy, leading to potential system compromise.

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

What is CVE-2025-15148?

CVE-2025-15148 is a medium-severity code injection vulnerability in CmsEasy, published on 28 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

A flaw has been found in CmsEasy up to 7.7.7. Affected is the function savetemp_action in the library /lib/admin/template_admin.php of the component Backend Template Management Page. Executing a manipulation of the argument content/tempdata can lead to code injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-94, CWE-74

Which versions are affected by CVE-2025-15148?

It affects 1 product.

Products include Cmseasy Cmseasy.

How do I fix CVE-2025-15148?

No fix has been published for CVE-2025-15148 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-2025-15148 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-15148 exists.

Sources

Also known as GHSA-m496-m5ff-4j4p.