CVE-2026-3721 1024-lab/lab1024 SmartAdmin Help Documentation HelpDocAddForm.java cross site scripting
Attackers can inject malicious scripts into the Help Documentation module of SmartAdmin, potentially leading to code execution or account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-3721?
CVE-2026-3721 is a medium-severity cross-site scripting vulnerability in 1024-lab SmartAdmin, published on 8 Mar 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A weakness has been identified in 1024-lab/lab1024 SmartAdmin up to 3.29. The affected element is an unknown function of the file sa-base/src/main/java/net/lab1024/sa/base/module/support/helpdoc/domain/form/HelpDocAddForm.java of the component Help Documentation Module. This manipulation causes cross site scripting. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Which versions are affected by CVE-2026-3721?
It affects 1 product.
Products include Lab1024 Smartadmin.
How do I fix CVE-2026-3721?
No fix has been published for CVE-2026-3721 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-3721 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-3721 exists.
Other vulnerabilities in 1024-lab SmartAdmin
Sources
Also known as GHSA-w9x3-7q6f-79x9.