CVE-2026-3725 Code injection in SmartAdmin

Medium 5.3 Published 8 Mar 2026 Updated 11 Mar 2026

Remote attackers can execute arbitrary code via template injection in the mail service, requiring permissions to access the vulnerable function.

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-2026-3725?

CVE-2026-3725 is a medium-severity code injection vulnerability in 1024-lab SmartAdmin, published on 8 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A flaw has been found in 1024-lab/lab1024 SmartAdmin up to 3.29. Affected by this issue is the function freemarkerResolverContent of the file sa-base/src/main/java/net/lab1024/sa/base/module/support/mail/MailService.java of the component FreeMarker Template Handler. Executing a manipulation of the argument template_content can lead to improper neutralization of special elements used in a template engine. The attack can 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-791, CWE-1336

Which versions are affected by CVE-2026-3725?

It affects 1 product.

Products include Lab1024 Smartadmin.

How do I fix CVE-2026-3725?

No fix has been published for CVE-2026-3725 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-2026-3725 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3725 exists.

Sources

Also known as GHSA-3vhr-rrhf-p2mj.