How serious is CVE-2026-3721?

This vulnerability has a CVSS score of 5.1 out of 10, classified as MEDIUM severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-3721?

Yes, proof-of-concept exploit code for CVE-2026-3721 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-3721?

CVE-2026-3721 affects lab1024 smartadmin. Check the full CVE details for specific version information.

How do I fix CVE-2026-3721?

To remediate CVE-2026-3721, check for security patches from lab1024. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-3721

Medium

|5.1

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

This vulnerability allows an attacker to inject malicious scripts into the Help Documentation Module of the SmartAdmin product, potentially compromising users who view the affected content. The attack can be carried out remotely, and since the exploit is publicly available, it poses a real risk to systems running the affected version.

Technical 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.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactHigh

ScopeChanged

Vector String

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$690($500-$1K)

Vendor Response

Grade APatched in 5 days

Quick Information

Published

Mar 8, 2026

about 1 month ago

Last Modified

Mar 13, 2026

26 days ago

Vendor

lab1024

Product

smartadmin

Related Vulnerabilities

CVE-2026-3725Medium

This vulnerability allows an attacker to manipulate email templates in the SmartAdmin application, potentially leading to unauthorized actions or information disclosure. The attack can be carried out remotely, and it affects versions up to 3.29 of the software.

CVE-2026-3720Medium

This vulnerability allows an attacker to inject malicious scripts into the web application, which can then execute in the browsers of users who visit the affected site. The attack can be launched remotely, meaning the attacker doesn't need physical access to the system, and it affects versions of the software up to 3.29.