How severe is CVE-2026-3721?

CVE-2026-3721 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-3721 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3721?

CVE-2026-3721 affects Lab1024 Smartadmin. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-3721?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3721 have an EU (EUVD) identifier?

Yes. CVE-2026-3721 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10225.

When was CVE-2026-3721 published?

CVE-2026-3721 was published on 2026-03-08 and last updated on 2026-06-17.

CVE-2026-3721

CVE-2026-3721 is a low-severity vulnerability in Lab1024 Smartadmin with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v2: 4.0
CVSS v4: 2.0
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-10225
Weakness: CWE-79
Affected product: Lab1024 Smartadmin
Published: 2026-03-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2026-3721?: 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.
How severe is CVE-2026-3721?: CVE-2026-3721 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-3721 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3721?: CVE-2026-3721 affects Lab1024 Smartadmin. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-3721?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3721 have an EU (EUVD) identifier?: Yes. CVE-2026-3721 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-10225.
When was CVE-2026-3721 published?: CVE-2026-3721 was published on 2026-03-08 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:lab1024:smartadmin:*:*:*:*:*:*:*:*

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